72142278090 has 16 divisors (see below), whose sum is σ = 173141467488. Its totient is φ = 19237940816.

The previous prime is 72142278079. The next prime is 72142278179. The reversal of 72142278090 is 9087224127.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202371272 + ... + 1202371331.

It is an arithmetic number, because the mean of its divisors is an integer number (10821341718).

Almost surely, 2^72142278090 is an apocalyptic number.

72142278090 is an abundant number, since it is smaller than the sum of its proper divisors (100999189398).

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

72142278090 is a wasteful number, since it uses less digits than its factorization.

72142278090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404742613.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 72142278090 in words is "seventy-two billion, one hundred forty-two million, two hundred seventy-eight thousand, ninety".