620534643331044 has 96 divisors (see below), whose sum is σ = 1563093715757056. Its totient is φ = 190468299087360.

The previous prime is 620534643330919. The next prime is 620534643331093. The reversal of 620534643331044 is 440133346435026.

It is a junction number, because it is equal to n+sod(n) for n = 620534643330984 and 620534643331002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079885934 + ... + 1080460410.

Almost surely, 2^{620534643331044} is an apocalyptic number.

It is an amenable number.

620534643331044 is an abundant number, since it is smaller than the sum of its proper divisors (942559072426012).

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

620534643331044 is a wasteful number, since it uses less digits than its factorization.

620534643331044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591365 (or 591363 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 48.

The spelling of 620534643331044 in words is "six hundred twenty trillion, five hundred thirty-four billion, six hundred forty-three million, three hundred thirty-one thousand, forty-four".