878327507864 has 16 divisors (see below), whose sum is σ = 1743738435000. Its totient is φ = 413330591872.

The previous prime is 878327507851. The next prime is 878327507909. The reversal of 878327507864 is 468705723878.

It is a super-2 number, since 2×878327507864² (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 878327507864.

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, 3229145114 + ... + 3229145385.

Almost surely, 2^878327507864 is an apocalyptic number.

It is an amenable number.

878327507864 is a deficient number, since it is larger than the sum of its proper divisors (865410927136).

878327507864 is a wasteful number, since it uses less digits than its factorization.

878327507864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458290522 (or 6458290518 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 878327507864 in words is "eight hundred seventy-eight billion, three hundred twenty-seven million, five hundred seven thousand, eight hundred sixty-four".