620675836985 has 8 divisors (see below), whose sum is σ = 784011583680. Its totient is φ = 470406950064.

The previous prime is 620675836939. The next prime is 620675837063. The reversal of 620675836985 is 589638576026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620675836985 - 2²⁸ = 620407401529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3266714837 + ... + 3266715026.

It is an arithmetic number, because the mean of its divisors is an integer number (98001447960).

Almost surely, 2^620675836985 is an apocalyptic number.

It is an amenable number.

620675836985 is a deficient number, since it is larger than the sum of its proper divisors (163335746695).

620675836985 is a wasteful number, since it uses less digits than its factorization.

620675836985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533429887.

The product of its (nonzero) digits is 130636800, while the sum is 65.

The spelling of 620675836985 in words is "six hundred twenty billion, six hundred seventy-five million, eight hundred thirty-six thousand, nine hundred eighty-five".