865374890535153 has 12 divisors (see below), whose sum is σ = 1250326270481860. Its totient is φ = 576759524080896.

The previous prime is 865374890535143. The next prime is 865374890535179. The reversal of 865374890535153 is 351535098473568.

865374890535153 is a `hidden beast` number, since 8 + 6 + 5 + 3 + 7 + 4 + 89 + 0 + 535 + 1 + 5 + 3 = 666.

865374890535153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 436463003539809 + 428911886995344 = 20891697^2 + 20710188^2 .

It is not a de Polignac number, because 865374890535153 - 2²⁴ = 865374873757937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (865374890535143) 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, 13089099208 + ... + 13089165321.

Almost surely, 2^{865374890535153} is an apocalyptic number.

It is an amenable number.

865374890535153 is a deficient number, since it is larger than the sum of its proper divisors (384951379946707).

865374890535153 is a wasteful number, since it uses less digits than its factorization.

865374890535153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26178268208 (or 26178268205 counting only the distinct ones).

The product of its (nonzero) digits is 1632960000, while the sum is 72.

The spelling of 865374890535153 in words is "eight hundred sixty-five trillion, three hundred seventy-four billion, eight hundred ninety million, five hundred thirty-five thousand, one hundred fifty-three".