27408230857 has 16 divisors (see below), whose sum is σ = 31676428672. Its totient is φ = 23228674560.

The previous prime is 27408230851. The next prime is 27408230869. The reversal of 27408230857 is 75803280472.

It is a de Polignac number, because none of the positive numbers 2^k-27408230857 is a prime.

It is a super-2 number, since 2×27408230857² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27408230851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723682 + ... + 760612.

It is an arithmetic number, because the mean of its divisors is an integer number (1979776792).

Almost surely, 2^27408230857 is an apocalyptic number.

It is an amenable number.

27408230857 is a deficient number, since it is larger than the sum of its proper divisors (4268197815).

27408230857 is a wasteful number, since it uses less digits than its factorization.

27408230857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38128.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 27408230857 in words is "twenty-seven billion, four hundred eight million, two hundred thirty thousand, eight hundred fifty-seven".