72137752693 has 8 divisors (see below), whose sum is σ = 72951464768. Its totient is φ = 71326220544.

The previous prime is 72137752691. The next prime is 72137752763. The reversal of 72137752693 is 39625773127.

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 72137752693 - 2¹ = 72137752691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72137752693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72137752691) by changing a digit.

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, 478380 + ... + 610837.

It is an arithmetic number, because the mean of its divisors is an integer number (9118933096).

Almost surely, 2^72137752693 is an apocalyptic number.

It is an amenable number.

72137752693 is a deficient number, since it is larger than the sum of its proper divisors (813712075).

72137752693 is a wasteful number, since it uses less digits than its factorization.

72137752693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089963.

The product of its digits is 3333960, while the sum is 52.

The spelling of 72137752693 in words is "seventy-two billion, one hundred thirty-seven million, seven hundred fifty-two thousand, six hundred ninety-three".