12327451065 has 48 divisors (see below), whose sum is σ = 21468125952. Its totient is φ = 6543798912.

The previous prime is 12327451049. The next prime is 12327451093. The reversal of 12327451065 is 56015472321.

12327451065 is a `hidden beast` number, since 12 + 3 + 2 + 74 + 510 + 65 = 666.

It is not a de Polignac number, because 12327451065 - 2⁴ = 12327451049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16591084 + ... + 16591826.

It is an arithmetic number, because the mean of its divisors is an integer number (447252624).

Almost surely, 2^12327451065 is an apocalyptic number.

12327451065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12327451065 is a deficient number, since it is larger than the sum of its proper divisors (9140674887).

12327451065 is a wasteful number, since it uses less digits than its factorization.

12327451065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 12327451065 in words is "twelve billion, three hundred twenty-seven million, four hundred fifty-one thousand, sixty-five".