27901161974 has 64 divisors (see below), whose sum is σ = 51371615232. Its totient is φ = 11093222400.

The previous prime is 27901161949. The next prime is 27901161979. The reversal of 27901161974 is 47916110972.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27901161979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10290479 + ... + 10293189.

It is an arithmetic number, because the mean of its divisors is an integer number (802681488).

Almost surely, 2^27901161974 is an apocalyptic number.

27901161974 is a deficient number, since it is larger than the sum of its proper divisors (23470453258).

27901161974 is a wasteful number, since it uses less digits than its factorization.

27901161974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 27901161974 in words is "twenty-seven billion, nine hundred one million, one hundred sixty-one thousand, nine hundred seventy-four".