868765599635520 has 56 divisors (see below), whose sum is σ = 2758330778845824. Its totient is φ = 231670826569216.

The previous prime is 868765599635501. The next prime is 868765599635621. The reversal of 868765599635520 is 25536995567868.

It is a super-2 number, since 2×868765599635520² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452482082184 + ... + 452482084103.

It is an arithmetic number, because the mean of its divisors is an integer number (49255906765104).

Almost surely, 2^{868765599635520} is an apocalyptic number.

868765599635520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868765599635520 is an abundant number, since it is smaller than the sum of its proper divisors (1889565179210304).

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

868765599635520 is a wasteful number, since it uses less digits than its factorization.

868765599635520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904964166307 (or 904964166297 counting only the distinct ones).

The product of its (nonzero) digits is 29393280000, while the sum is 84.

The spelling of 868765599635520 in words is "eight hundred sixty-eight trillion, seven hundred sixty-five billion, five hundred ninety-nine million, six hundred thirty-five thousand, five hundred twenty".