72130014502 has 32 divisors (see below), whose sum is σ = 133336526400. Its totient is φ = 28497788928.

The previous prime is 72130014499. The next prime is 72130014503. The reversal of 72130014502 is 20541003127.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72130014503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117727 + ... + 397642.

It is an arithmetic number, because the mean of its divisors is an integer number (4166766450).

Almost surely, 2^72130014502 is an apocalyptic number.

72130014502 is a deficient number, since it is larger than the sum of its proper divisors (61206511898).

72130014502 is a wasteful number, since it uses less digits than its factorization.

72130014502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516160.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 72130014502 its reverse (20541003127), we get a palindrome (92671017629).

The spelling of 72130014502 in words is "seventy-two billion, one hundred thirty million, fourteen thousand, five hundred two".