72179520733751 has 16 divisors (see below), whose sum is σ = 75765839019840. Its totient is φ = 68667545237760.

The previous prime is 72179520733717. The next prime is 72179520733813. The reversal of 72179520733751 is 15733702597127.

It is a cyclic number.

It is not a de Polignac number, because 72179520733751 - 2¹⁰ = 72179520732727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72179520753751) 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, 7166276 + ... + 13989801.

It is an arithmetic number, because the mean of its divisors is an integer number (4735364938740).

Almost surely, 2^{72179520733751} is an apocalyptic number.

72179520733751 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

72179520733751 is a deficient number, since it is larger than the sum of its proper divisors (3586318286089).

72179520733751 is a wasteful number, since it uses less digits than its factorization.

72179520733751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21157834.

The product of its (nonzero) digits is 19448100, while the sum is 59.

The spelling of 72179520733751 in words is "seventy-two trillion, one hundred seventy-nine billion, five hundred twenty million, seven hundred thirty-three thousand, seven hundred fifty-one".