72464718140 has 12 divisors (see below), whose sum is σ = 152175908136. Its totient is φ = 28985887248.

The previous prime is 72464718133. The next prime is 72464718163. The reversal of 72464718140 is 4181746427.

It is a super-2 number, since 2×72464718140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72464718091 and 72464718100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811617934 + ... + 1811617973.

It is an arithmetic number, because the mean of its divisors is an integer number (12681325678).

Almost surely, 2^72464718140 is an apocalyptic number.

It is an amenable number.

72464718140 is an abundant number, since it is smaller than the sum of its proper divisors (79711189996).

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

72464718140 is a wasteful number, since it uses less digits than its factorization.

72464718140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623235916 (or 3623235914 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 72464718140 in words is "seventy-two billion, four hundred sixty-four million, seven hundred eighteen thousand, one hundred forty".