868622712488 has 16 divisors (see below), whose sum is σ = 1637106280980. Its totient is φ = 432061037568.

The previous prime is 868622712479. The next prime is 868622712521. The reversal of 868622712488 is 884217226868.

It can be written as a sum of positive squares in 2 ways, for example, as 834003644644 + 34619067844 = 913238^2 + 186062^2 .

It is a super-2 number, since 2×868622712488² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 868622712488.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281288195 + ... + 281291282.

Almost surely, 2^868622712488 is an apocalyptic number.

It is an amenable number.

868622712488 is a deficient number, since it is larger than the sum of its proper divisors (768483568492).

868622712488 is a wasteful number, since it uses less digits than its factorization.

868622712488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562579676 (or 562579672 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 62.

The spelling of 868622712488 in words is "eight hundred sixty-eight billion, six hundred twenty-two million, seven hundred twelve thousand, four hundred eighty-eight".