662807538426 has 64 divisors (see below), whose sum is σ = 1509155712000. Its totient is φ = 192098375040.

The previous prime is 662807538413. The next prime is 662807538431. The reversal of 662807538426 is 624835708266.

662807538426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 21614661 + ... + 21645303.

It is an arithmetic number, because the mean of its divisors is an integer number (23580558000).

Almost surely, 2^662807538426 is an apocalyptic number.

662807538426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

662807538426 is an abundant number, since it is smaller than the sum of its proper divisors (846348173574).

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

662807538426 is a wasteful number, since it uses less digits than its factorization.

662807538426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44931.

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 662807538426 in words is "six hundred sixty-two billion, eight hundred seven million, five hundred thirty-eight thousand, four hundred twenty-six".