72142937136 has 60 divisors (see below), whose sum is σ = 203686797288. Its totient is φ = 23834829312.

The previous prime is 72142937131. The next prime is 72142937171. The reversal of 72142937136 is 63173924127.

It is a junction number, because it is equal to n+sod(n) for n = 72142937091 and 72142937100.

It is not an unprimeable number, because it can be changed into a prime (72142937131) 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, 2200510 + ... + 2233053.

Almost surely, 2^72142937136 is an apocalyptic number.

It is an amenable number.

72142937136 is an abundant number, since it is smaller than the sum of its proper divisors (131543860152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72142937136 is a wasteful number, since it uses less digits than its factorization.

72142937136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433690 (or 4433681 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The spelling of 72142937136 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-seven thousand, one hundred thirty-six".