27898798388956 has 96 divisors (see below), whose sum is σ = 53961663974400. Its totient is φ = 12515707142400.

The previous prime is 27898798388947. The next prime is 27898798388977. The reversal of 27898798388956 is 65988389789872.

It is a super-2 number, since 2×27898798388956² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2122059175 + ... + 2122072321.

It is an arithmetic number, because the mean of its divisors is an integer number (562100666400).

Almost surely, 2^{27898798388956} is an apocalyptic number.

It is an amenable number.

27898798388956 is a deficient number, since it is larger than the sum of its proper divisors (26062865585444).

27898798388956 is a wasteful number, since it uses less digits than its factorization.

27898798388956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15355 (or 15353 counting only the distinct ones).

The product of its digits is 210691031040, while the sum is 97.

The spelling of 27898798388956 in words is "twenty-seven trillion, eight hundred ninety-eight billion, seven hundred ninety-eight million, three hundred eighty-eight thousand, nine hundred fifty-six".