72182928929 has 4 divisors (see below), whose sum is σ = 72418052784. Its totient is φ = 71947805076.

The previous prime is 72182928901. The next prime is 72182928947. The reversal of 72182928929 is 92982928127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92982928127 = 103651 ⋅897077.

It is a cyclic number.

It is not a de Polignac number, because 72182928929 - 2²⁴ = 72166151713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72182924929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117561467 + ... + 117562080.

It is an arithmetic number, because the mean of its divisors is an integer number (18104513196).

Almost surely, 2^72182928929 is an apocalyptic number.

It is an amenable number.

72182928929 is a deficient number, since it is larger than the sum of its proper divisors (235123855).

72182928929 is a wasteful number, since it uses less digits than its factorization.

72182928929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235123854.

The product of its digits is 5225472, while the sum is 59.

The spelling of 72182928929 in words is "seventy-two billion, one hundred eighty-two million, nine hundred twenty-eight thousand, nine hundred twenty-nine".