72643140513 has 12 divisors (see below), whose sum is σ = 104932098960. Its totient is φ = 48427321176.

The previous prime is 72643140481. The next prime is 72643140539. The reversal of 72643140513 is 31504134627.

72643140513 is a `hidden beast` number, since 7 + 2 + 643 + 1 + 4 + 0 + 5 + 1 + 3 = 666.

It is not a de Polignac number, because 72643140513 - 2⁵ = 72643140481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72643140613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264658 + ... + 464036.

It is an arithmetic number, because the mean of its divisors is an integer number (8744341580).

Almost surely, 2^72643140513 is an apocalyptic number.

It is an amenable number.

72643140513 is a deficient number, since it is larger than the sum of its proper divisors (32288958447).

72643140513 is a wasteful number, since it uses less digits than its factorization.

72643140513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239868 (or 239865 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 72643140513 in words is "seventy-two billion, six hundred forty-three million, one hundred forty thousand, five hundred thirteen".