27979027401 has 16 divisors (see below), whose sum is σ = 41470983680. Its totient is φ = 16662447360.

The previous prime is 27979027399. The next prime is 27979027459. The reversal of 27979027401 is 10472097972.

It is not a de Polignac number, because 27979027401 - 2¹ = 27979027399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27979027301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11569936 + ... + 11572353.

It is an arithmetic number, because the mean of its divisors is an integer number (2591936480).

Almost surely, 2^27979027401 is an apocalyptic number.

It is an amenable number.

27979027401 is a deficient number, since it is larger than the sum of its proper divisors (13491956279).

27979027401 is a wasteful number, since it uses less digits than its factorization.

27979027401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23142336.

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 27979027401 in words is "twenty-seven billion, nine hundred seventy-nine million, twenty-seven thousand, four hundred one".