72796173429 has 16 divisors (see below), whose sum is σ = 114505809920. Its totient is φ = 40255948080.

The previous prime is 72796173397. The next prime is 72796173497. The reversal of 72796173429 is 92437169727.

It is a happy number.

It is not a de Polignac number, because 72796173429 - 2⁵ = 72796173397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72796173029) 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, 55910389 + ... + 55911690.

It is an arithmetic number, because the mean of its divisors is an integer number (7156613120).

Almost surely, 2^72796173429 is an apocalyptic number.

It is an amenable number.

72796173429 is a deficient number, since it is larger than the sum of its proper divisors (41709636491).

72796173429 is a wasteful number, since it uses less digits than its factorization.

72796173429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111822120.

The product of its digits is 8001504, while the sum is 57.

The spelling of 72796173429 in words is "seventy-two billion, seven hundred ninety-six million, one hundred seventy-three thousand, four hundred twenty-nine".