27429238472 has 32 divisors (see below), whose sum is σ = 54543530520. Its totient is φ = 12886917120.

The previous prime is 27429238457. The next prime is 27429238511. The reversal of 27429238472 is 27483292472.

It can be written as a sum of positive squares in 4 ways, for example, as 23825157316 + 3604081156 = 154354^2 + 60034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27429238472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79529 + ... + 247352.

Almost surely, 2^27429238472 is an apocalyptic number.

It is an amenable number.

27429238472 is a deficient number, since it is larger than the sum of its proper divisors (27114292048).

27429238472 is a wasteful number, since it uses less digits than its factorization.

27429238472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327521 (or 327517 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 50.

The spelling of 27429238472 in words is "twenty-seven billion, four hundred twenty-nine million, two hundred thirty-eight thousand, four hundred seventy-two".