72701724515 has 8 divisors (see below), whose sum is σ = 99705222240. Its totient is φ = 49852611072.

The previous prime is 72701724479. The next prime is 72701724523. The reversal of 72701724515 is 51542710727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72701724515 - 2¹⁰ = 72701723491 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038596030 + ... + 1038596099.

It is an arithmetic number, because the mean of its divisors is an integer number (12463152780).

Almost surely, 2^72701724515 is an apocalyptic number.

72701724515 is a deficient number, since it is larger than the sum of its proper divisors (27003497725).

72701724515 is a wasteful number, since it uses less digits than its factorization.

72701724515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077192141.

The product of its (nonzero) digits is 137200, while the sum is 41.

The spelling of 72701724515 in words is "seventy-two billion, seven hundred one million, seven hundred twenty-four thousand, five hundred fifteen".