620501100426 has 64 divisors (see below), whose sum is σ = 1451588428800. Its totient is φ = 195930994608.

The previous prime is 620501100419. The next prime is 620501100437. The reversal of 620501100426 is 624001105026.

620501100426 is a `hidden beast` number, since 620 + 5 + 0 + 1 + 10 + 0 + 4 + 26 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 620501100426.

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, 18437851 + ... + 18471473.

It is an arithmetic number, because the mean of its divisors is an integer number (22681069200).

Almost surely, 2^620501100426 is an apocalyptic number.

620501100426 is an abundant number, since it is smaller than the sum of its proper divisors (831087328374).

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

620501100426 is a wasteful number, since it uses less digits than its factorization.

620501100426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51640 (or 51634 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 620501100426 in words is "six hundred twenty billion, five hundred one million, one hundred thousand, four hundred twenty-six".