27642957922 has 16 divisors (see below), whose sum is σ = 41801195520. Its totient is φ = 13709279808.

The previous prime is 27642957919. The next prime is 27642957929. The reversal of 27642957922 is 22975924672.

It is not an unprimeable number, because it can be changed into a prime (27642957929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261423 + ... + 1283149.

It is an arithmetic number, because the mean of its divisors is an integer number (2612574720).

Almost surely, 2^27642957922 is an apocalyptic number.

27642957922 is a deficient number, since it is larger than the sum of its proper divisors (14158237598).

27642957922 is a wasteful number, since it uses less digits than its factorization.

27642957922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26865.

The product of its digits is 7620480, while the sum is 55.

The spelling of 27642957922 in words is "twenty-seven billion, six hundred forty-two million, nine hundred fifty-seven thousand, nine hundred twenty-two".