27677347638403 has 4 divisors (see below), whose sum is σ = 27677358904168. Its totient is φ = 27677336372640.

The previous prime is 27677347638397. The next prime is 27677347638439. The reversal of 27677347638403 is 30483674377672.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27677347638403 - 2³⁷ = 27539908684931 is a prime.

It is the 5260927-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27677347648403) by changing a digit.

It is a nontrivial repunit in base 5260926.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203001 + ... + 7442842.

It is an arithmetic number, because the mean of its divisors is an integer number (6919339726042).

Almost surely, 2^{27677347638403} is an apocalyptic number.

27677347638403 is the 2812084-th centered heptagonal number.

27677347638403 is a deficient number, since it is larger than the sum of its proper divisors (11265765).

27677347638403 is an equidigital number, since it uses as much as digits as its factorization.

27677347638403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265764.

The product of its (nonzero) digits is 597445632, while the sum is 67.

The spelling of 27677347638403 in words is "twenty-seven trillion, six hundred seventy-seven billion, three hundred forty-seven million, six hundred thirty-eight thousand, four hundred three".