72142936443 has 8 divisors (see below), whose sum is σ = 106878424400. Its totient is φ = 48095290944.

The previous prime is 72142936423. The next prime is 72142936451. The reversal of 72142936443 is 34463924127.

It is not a de Polignac number, because 72142936443 - 2²² = 72138742139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72142936423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335980278 + ... + 1335980331.

It is an arithmetic number, because the mean of its divisors is an integer number (13359803050).

Almost surely, 2^72142936443 is an apocalyptic number.

72142936443 is a deficient number, since it is larger than the sum of its proper divisors (34735487957).

72142936443 is a wasteful number, since it uses less digits than its factorization.

72142936443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671960618 (or 2671960612 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The spelling of 72142936443 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-six thousand, four hundred forty-three".