864618152 has 8 divisors (see below), whose sum is σ = 1621159050. Its totient is φ = 432309072.

The previous prime is 864618121. The next prime is 864618163. The reversal of 864618152 is 251816468.

It can be written as a sum of positive squares in only one way, i.e., 711502276 + 153115876 = 26674^2 + 12374^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54038627 + ... + 54038642.

Almost surely, 2^864618152 is an apocalyptic number.

It is an amenable number.

864618152 is a deficient number, since it is larger than the sum of its proper divisors (756540898).

864618152 is a wasteful number, since it uses less digits than its factorization.

864618152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108077275 (or 108077271 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 864618152 is about 29404.3900123774. The cubic root of 864618152 is about 952.6677194249.

The spelling of 864618152 in words is "eight hundred sixty-four million, six hundred eighteen thousand, one hundred fifty-two".