620770454031 has 64 divisors (see below), whose sum is σ = 1022781376512. Its totient is φ = 326129836032.

The previous prime is 620770453991. The next prime is 620770454063. The reversal of 620770454031 is 130454077026.

It is not a de Polignac number, because 620770454031 - 2¹³ = 620770445839 is a prime.

It is a super-2 number, since 2×620770454031² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620770454131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94727451 + ... + 94734003.

It is an arithmetic number, because the mean of its divisors is an integer number (15980959008).

Almost surely, 2^620770454031 is an apocalyptic number.

620770454031 is a deficient number, since it is larger than the sum of its proper divisors (402010922481).

620770454031 is a wasteful number, since it uses less digits than its factorization.

620770454031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7912.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 620770454031 in words is "six hundred twenty billion, seven hundred seventy million, four hundred fifty-four thousand, thirty-one".