864892199904 has 192 divisors, whose sum is σ = 2389953226752. Its totient is φ = 273530880000.

The previous prime is 864892199851. The next prime is 864892199917. The reversal of 864892199904 is 409991298468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30873904 + ... + 30901904.

It is an arithmetic number, because the mean of its divisors is an integer number (12447673056).

Almost surely, 2^864892199904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864892199904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194976613376).

864892199904 is an abundant number, since it is smaller than the sum of its proper divisors (1525061026848).

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

864892199904 is a wasteful number, since it uses less digits than its factorization.

864892199904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28249 (or 28241 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 69.

The spelling of 864892199904 in words is "eight hundred sixty-four billion, eight hundred ninety-two million, one hundred ninety-nine thousand, nine hundred four".