72142936430 has 32 divisors (see below), whose sum is σ = 135518745600. Its totient is φ = 27599359392.

The previous prime is 72142936423. The next prime is 72142936451. The reversal of 72142936430 is 3463924127.

It is a super-2 number, since 2×72142936430² (a number of 23 digits) contains 22 as substring.

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, 3471611 + ... + 3492329.

It is an arithmetic number, because the mean of its divisors is an integer number (4234960800).

Almost surely, 2^72142936430 is an apocalyptic number.

72142936430 is a deficient number, since it is larger than the sum of its proper divisors (63375809170).

72142936430 is a wasteful number, since it uses less digits than its factorization.

72142936430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35888.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 72142936430 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-six thousand, four hundred thirty".