72142936444 has 48 divisors (see below), whose sum is σ = 130002411616. Its totient is φ = 35010662400.

The previous prime is 72142936423. The next prime is 72142936451. The reversal of 72142936444 is 44463924127.

It is a junction number, because it is equal to n+sod(n) for n = 72142936394 and 72142936403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22423924 + ... + 22427140.

Almost surely, 2^72142936444 is an apocalyptic number.

It is an amenable number.

72142936444 is a deficient number, since it is larger than the sum of its proper divisors (57859475172).

72142936444 is a wasteful number, since it uses less digits than its factorization.

72142936444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4044 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 46.

The spelling of 72142936444 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-six thousand, four hundred forty-four".