72213142851 has 48 divisors (see below), whose sum is σ = 113678755840. Its totient is φ = 44005006080.

The previous prime is 72213142829. The next prime is 72213142853. The reversal of 72213142851 is 15824131227.

72213142851 is a `hidden beast` number, since 7 + 221 + 3 + 1 + 428 + 5 + 1 = 666.

It is not a de Polignac number, because 72213142851 - 2⁷ = 72213142723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72213142853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1766226 + ... + 1806648.

Almost surely, 2^72213142851 is an apocalyptic number.

72213142851 is a deficient number, since it is larger than the sum of its proper divisors (41465612989).

72213142851 is a wasteful number, since it uses less digits than its factorization.

72213142851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40816 (or 40813 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The spelling of 72213142851 in words is "seventy-two billion, two hundred thirteen million, one hundred forty-two thousand, eight hundred fifty-one".