620039131092 has 18 divisors (see below), whose sum is σ = 1567321137018. Its totient is φ = 206679710352.

The previous prime is 620039131087. The next prime is 620039131099. The reversal of 620039131092 is 290131930026.

It is a happy number.

620039131092 is a `hidden beast` number, since 620 + 0 + 3 + 9 + 13 + 10 + 9 + 2 = 666.

620039131092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 520640174916 + 99398956176 = 721554^2 + 315276^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×620039131092² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 17223309197 = 620039131092 / (6 + 2 + 0 + 0 + 3 + 9 + 1 + 3 + 1 + 0 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620039131099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8611654563 + ... + 8611654634.

It is an arithmetic number, because the mean of its divisors is an integer number (87073396501).

Almost surely, 2^620039131092 is an apocalyptic number.

It is an amenable number.

620039131092 is an abundant number, since it is smaller than the sum of its proper divisors (947282005926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620039131092 is a wasteful number, since it uses less digits than its factorization.

620039131092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17223309207 (or 17223309202 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 620039131092 in words is "six hundred twenty billion, thirty-nine million, one hundred thirty-one thousand, ninety-two".