27775557508051 has 16 divisors (see below), whose sum is σ = 29450860196544. Its totient is φ = 26104866084864.

The previous prime is 27775557508031. The next prime is 27775557508079. The reversal of 27775557508051 is 15080575557772.

It is not a de Polignac number, because 27775557508051 - 2²³ = 27775549119443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27775557508031) 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, 155793106 + ... + 155971288.

It is an arithmetic number, because the mean of its divisors is an integer number (1840678762284).

Almost surely, 2^{27775557508051} is an apocalyptic number.

27775557508051 is a deficient number, since it is larger than the sum of its proper divisors (1675302688493).

27775557508051 is a wasteful number, since it uses less digits than its factorization.

27775557508051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191070.

The product of its (nonzero) digits is 120050000, while the sum is 64.

The spelling of 27775557508051 in words is "twenty-seven trillion, seven hundred seventy-five billion, five hundred fifty-seven million, five hundred eight thousand, fifty-one".