620765512034 has 4 divisors (see below), whose sum is σ = 931148268054. Its totient is φ = 310382756016.

The previous prime is 620765512013. The next prime is 620765512039. The reversal of 620765512034 is 430215567026.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 592981622809 + 27783889225 = 770053^2 + 166685^2 .

It is a junction number, because it is equal to n+sod(n) for n = 620765511982 and 620765512000.

It is not an unprimeable number, because it can be changed into a prime (620765512039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155191378007 + ... + 155191378010.

Almost surely, 2^620765512034 is an apocalyptic number.

620765512034 is a deficient number, since it is larger than the sum of its proper divisors (310382756020).

620765512034 is a wasteful number, since it uses less digits than its factorization.

620765512034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310382756019.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 620765512034 in words is "six hundred twenty billion, seven hundred sixty-five million, five hundred twelve thousand, thirty-four".