27945858475 has 24 divisors (see below), whose sum is σ = 36238975200. Its totient is φ = 21337662720.

The previous prime is 27945858469. The next prime is 27945858547. The reversal of 27945858475 is 57485854972.

It is not a de Polignac number, because 27945858475 - 2³¹ = 25798374827 is a prime.

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, 209601 + ... + 315949.

It is an arithmetic number, because the mean of its divisors is an integer number (1509957300).

Almost surely, 2^27945858475 is an apocalyptic number.

27945858475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27945858475 is a deficient number, since it is larger than the sum of its proper divisors (8293116725).

27945858475 is a wasteful number, since it uses less digits than its factorization.

27945858475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106839 (or 106834 counting only the distinct ones).

The product of its digits is 112896000, while the sum is 64.

The spelling of 27945858475 in words is "twenty-seven billion, nine hundred forty-five million, eight hundred fifty-eight thousand, four hundred seventy-five".