72702768237 has 16 divisors (see below), whose sum is σ = 106191959040. Its totient is φ = 43877918000.

The previous prime is 72702768133. The next prime is 72702768247. The reversal of 72702768237 is 73286720727.

It is a cyclic number.

It is not a de Polignac number, because 72702768237 - 2¹⁰ = 72702767213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72702768237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72702768247) 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 15 ways as a sum of consecutive naturals, for example, 4601139 + ... + 4616912.

It is an arithmetic number, because the mean of its divisors is an integer number (6636997440).

Almost surely, 2^72702768237 is an apocalyptic number.

It is an amenable number.

72702768237 is a deficient number, since it is larger than the sum of its proper divisors (33489190803).

72702768237 is a wasteful number, since it uses less digits than its factorization.

72702768237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9218304.

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 72702768237 in words is "seventy-two billion, seven hundred two million, seven hundred sixty-eight thousand, two hundred thirty-seven".