72845512136368 has 20 divisors (see below), whose sum is σ = 142215570453528. Its totient is φ = 36144719761280.

The previous prime is 72845512136263. The next prime is 72845512136387. The reversal of 72845512136368 is 86363121554827.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17377267021 + ... + 17377271212.

Almost surely, 2^{72845512136368} is an apocalyptic number.

It is an amenable number.

72845512136368 is a deficient number, since it is larger than the sum of its proper divisors (69370058317160).

72845512136368 is a wasteful number, since it uses less digits than its factorization.

72845512136368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34754538372 (or 34754538366 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 61.

The spelling of 72845512136368 in words is "seventy-two trillion, eight hundred forty-five billion, five hundred twelve million, one hundred thirty-six thousand, three hundred sixty-eight".