868073401664 has 28 divisors (see below), whose sum is σ = 1968666465504. Its totient is φ = 372031457664.

The previous prime is 868073401567. The next prime is 868073401691. The reversal of 868073401664 is 466104370868.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968831474 + ... + 968832369.

Almost surely, 2^868073401664 is an apocalyptic number.

It is an amenable number.

868073401664 is an abundant number, since it is smaller than the sum of its proper divisors (1100593063840).

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

868073401664 is a wasteful number, since it uses less digits than its factorization.

868073401664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937663862 (or 1937663852 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 868073401664 in words is "eight hundred sixty-eight billion, seventy-three million, four hundred one thousand, six hundred sixty-four".