27857101896 has 48 divisors (see below), whose sum is σ = 81249883260. Its totient is φ = 8571415680.

The previous prime is 27857101879. The next prime is 27857101903. The reversal of 27857101896 is 69810175872.

It can be written as a sum of positive squares in 2 ways, for example, as 27484997796 + 372104100 = 165786^2 + 19290^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14879995 + ... + 14881866.

Almost surely, 2^27857101896 is an apocalyptic number.

27857101896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27857101896 is an abundant number, since it is smaller than the sum of its proper divisors (53392781364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27857101896 is a wasteful number, since it uses less digits than its factorization.

27857101896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29761886 (or 29761879 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 27857101896 in words is "twenty-seven billion, eight hundred fifty-seven million, one hundred one thousand, eight hundred ninety-six".