864120285464 has 8 divisors (see below), whose sum is σ = 1620225535260. Its totient is φ = 432060142728.

The previous prime is 864120285463. The next prime is 864120285487. The reversal of 864120285464 is 464582021468.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864120285461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54007517834 + ... + 54007517849.

Almost surely, 2^864120285464 is an apocalyptic number.

It is an amenable number.

864120285464 is a deficient number, since it is larger than the sum of its proper divisors (756105249796).

864120285464 is a wasteful number, since it uses less digits than its factorization.

864120285464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108015035689 (or 108015035685 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 864120285464 in words is "eight hundred sixty-four billion, one hundred twenty million, two hundred eighty-five thousand, four hundred sixty-four".