72238690550685 has 32 divisors (see below), whose sum is σ = 115638650910720. Its totient is φ = 38508387844608.

The previous prime is 72238690550683. The next prime is 72238690550699. The reversal of 72238690550685 is 58605509683227.

It is not a de Polignac number, because 72238690550685 - 2¹ = 72238690550683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72238690550683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1232439439 + ... + 1232498051.

It is an arithmetic number, because the mean of its divisors is an integer number (3613707840960).

Almost surely, 2^{72238690550685} is an apocalyptic number.

It is an amenable number.

72238690550685 is a deficient number, since it is larger than the sum of its proper divisors (43399960360035).

72238690550685 is a wasteful number, since it uses less digits than its factorization.

72238690550685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97557.

The product of its (nonzero) digits is 217728000, while the sum is 66.

The spelling of 72238690550685 in words is "seventy-two trillion, two hundred thirty-eight billion, six hundred ninety million, five hundred fifty thousand, six hundred eighty-five".