27882221157 has 12 divisors (see below), whose sum is σ = 46027793760. Its totient is φ = 15932697768.

The previous prime is 27882221153. The next prime is 27882221167. The reversal of 27882221157 is 75112228872.

27882221157 is a `hidden beast` number, since 278 + 8 + 2 + 221 + 157 = 666.

It is not a de Polignac number, because 27882221157 - 2² = 27882221153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27882221153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221287407 + ... + 221287532.

It is an arithmetic number, because the mean of its divisors is an integer number (3835649480).

Almost surely, 2^27882221157 is an apocalyptic number.

It is an amenable number.

27882221157 is a deficient number, since it is larger than the sum of its proper divisors (18145572603).

27882221157 is a wasteful number, since it uses less digits than its factorization.

27882221157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442574952 (or 442574949 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The spelling of 27882221157 in words is "twenty-seven billion, eight hundred eighty-two million, two hundred twenty-one thousand, one hundred fifty-seven".