27777675516 has 24 divisors (see below), whose sum is σ = 65243816064. Its totient is φ = 9197905200.

The previous prime is 27777675473. The next prime is 27777675517. The reversal of 27777675516 is 61557677772.

It is a self number, because there is not a number n which added to its sum of digits gives 27777675516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27777675517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7663110 + ... + 7666733.

It is an arithmetic number, because the mean of its divisors is an integer number (2718492336).

Almost surely, 2^27777675516 is an apocalyptic number.

It is an amenable number.

27777675516 is an abundant number, since it is smaller than the sum of its proper divisors (37466140548).

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

27777675516 is a wasteful number, since it uses less digits than its factorization.

27777675516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330001 (or 15329999 counting only the distinct ones).

The product of its digits is 30252600, while the sum is 60.

The spelling of 27777675516 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-five thousand, five hundred sixteen".