27945858474 has 12 divisors (see below), whose sum is σ = 60549360066. Its totient is φ = 9315286152.

The previous prime is 27945858469. The next prime is 27945858547. The reversal of 27945858474 is 47485854972.

It is a happy number.

27945858474 is a `hidden beast` number, since 2 + 7 + 9 + 4 + 585 + 8 + 47 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19897077249 + 8048781225 = 141057^2 + 89715^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 776273829 + ... + 776273864.

Almost surely, 2^27945858474 is an apocalyptic number.

27945858474 is an abundant number, since it is smaller than the sum of its proper divisors (32603501592).

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

27945858474 is a wasteful number, since it uses less digits than its factorization.

27945858474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552547701 (or 1552547698 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 63.

The spelling of 27945858474 in words is "twenty-seven billion, nine hundred forty-five million, eight hundred fifty-eight thousand, four hundred seventy-four".