72039320950785 has 16 divisors (see below), whose sum is σ = 115455339100800. Its totient is φ = 38356829313920.

The previous prime is 72039320950769. The next prime is 72039320950787. The reversal of 72039320950785 is 58705902393027.

It is not a de Polignac number, because 72039320950785 - 2⁴ = 72039320950769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72039320950787) 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, 4008856956 + ... + 4008874925.

It is an arithmetic number, because the mean of its divisors is an integer number (7215958693800).

Almost surely, 2^{72039320950785} is an apocalyptic number.

It is an amenable number.

72039320950785 is a deficient number, since it is larger than the sum of its proper divisors (43416018150015).

72039320950785 is a wasteful number, since it uses less digits than its factorization.

72039320950785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8017732488.

The product of its (nonzero) digits is 28576800, while the sum is 60.

The spelling of 72039320950785 in words is "seventy-two trillion, thirty-nine billion, three hundred twenty million, nine hundred fifty thousand, seven hundred eighty-five".