72869964537 has 16 divisors (see below), whose sum is σ = 101275249472. Its totient is φ = 46561521600.

The previous prime is 72869964499. The next prime is 72869964553. The reversal of 72869964537 is 73546996827.

It is not a de Polignac number, because 72869964537 - 2²⁰ = 72868915961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72869864537) 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, 4891714 + ... + 4906587.

It is an arithmetic number, because the mean of its divisors is an integer number (6329703092).

Almost surely, 2^72869964537 is an apocalyptic number.

It is an amenable number.

72869964537 is a deficient number, since it is larger than the sum of its proper divisors (28405284935).

72869964537 is a wasteful number, since it uses less digits than its factorization.

72869964537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9798408.

The product of its digits is 137168640, while the sum is 66.

The spelling of 72869964537 in words is "seventy-two billion, eight hundred sixty-nine million, nine hundred sixty-four thousand, five hundred thirty-seven".