863894904732 has 36 divisors (see below), whose sum is σ = 2254177388736. Its totient is φ = 278675775360.

The previous prime is 863894904727. The next prime is 863894904737. The reversal of 863894904732 is 237409498368.

863894904732 is a `hidden beast` number, since 8 + 63 + 89 + 490 + 4 + 7 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (863894904727) and next prime (863894904737).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×863894904732² (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 863894904732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863894904737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387048573 + ... + 387050804.

It is an arithmetic number, because the mean of its divisors is an integer number (62616038576).

Almost surely, 2^863894904732 is an apocalyptic number.

It is an amenable number.

863894904732 is an abundant number, since it is smaller than the sum of its proper divisors (1390282484004).

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

863894904732 is a wasteful number, since it uses less digits than its factorization.

863894904732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774099418 (or 774099413 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 863894904732 in words is "eight hundred sixty-three billion, eight hundred ninety-four million, nine hundred four thousand, seven hundred thirty-two".