868501337520 has 40 divisors (see below), whose sum is σ = 2692354147056. Its totient is φ = 231600356608.

The previous prime is 868501337381. The next prime is 868501337531. The reversal of 868501337520 is 25733105868.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 868501337520.

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, 1809377547 + ... + 1809378026.

Almost surely, 2^868501337520 is an apocalyptic number.

868501337520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868501337520 is an abundant number, since it is smaller than the sum of its proper divisors (1823852809536).

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

868501337520 is a wasteful number, since it uses less digits than its factorization.

868501337520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618755589 (or 3618755583 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

It can be divided in two parts, 868501 and 337520, that added together give a palindrome (1206021).

The spelling of 868501337520 in words is "eight hundred sixty-eight billion, five hundred one million, three hundred thirty-seven thousand, five hundred twenty".