27051199898156 has 36 divisors (see below), whose sum is σ = 55097916061608. Its totient is φ = 11587181493888.

The previous prime is 27051199898087. The next prime is 27051199898209. The reversal of 27051199898156 is 65189899115072.

It is a self number, because there is not a number n which added to its sum of digits gives 27051199898156.

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, 36476546 + ... + 37210761.

It is an arithmetic number, because the mean of its divisors is an integer number (1530497668378).

Almost surely, 2^{27051199898156} is an apocalyptic number.

It is an amenable number.

27051199898156 is an abundant number, since it is smaller than the sum of its proper divisors (28046716163452).

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

27051199898156 is a wasteful number, since it uses less digits than its factorization.

27051199898156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73689198 (or 73689189 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 71.

The spelling of 27051199898156 in words is "twenty-seven trillion, fifty-one billion, one hundred ninety-nine million, eight hundred ninety-eight thousand, one hundred fifty-six".