864402085484 has 24 divisors (see below), whose sum is σ = 1736353547040. Its totient is φ = 368840313216.

The previous prime is 864402085429. The next prime is 864402085489. The reversal of 864402085484 is 484580204468.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (864402085489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67398617 + ... + 67411440.

It is an arithmetic number, because the mean of its divisors is an integer number (72348064460).

Almost surely, 2^864402085484 is an apocalyptic number.

It is an amenable number.

864402085484 is an abundant number, since it is smaller than the sum of its proper divisors (871951461556).

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

864402085484 is a wasteful number, since it uses less digits than its factorization.

864402085484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134810297 (or 134810295 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 53.

The spelling of 864402085484 in words is "eight hundred sixty-four billion, four hundred two million, eighty-five thousand, four hundred eighty-four".