27479642975 has 24 divisors (see below), whose sum is σ = 35070576768. Its totient is φ = 21350498400.

The previous prime is 27479642969. The next prime is 27479643029. The reversal of 27479642975 is 57924697472.

It is not a de Polignac number, because 27479642975 - 2⁴ = 27479642959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3392 + ... + 234458.

It is an arithmetic number, because the mean of its divisors is an integer number (1461274032).

Almost surely, 2^27479642975 is an apocalyptic number.

27479642975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27479642975 is a deficient number, since it is larger than the sum of its proper divisors (7590933793).

27479642975 is a wasteful number, since it uses less digits than its factorization.

27479642975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231215 (or 231210 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 62.

The spelling of 27479642975 in words is "twenty-seven billion, four hundred seventy-nine million, six hundred forty-two thousand, nine hundred seventy-five".