74572248765 has 64 divisors (see below), whose sum is σ = 137725862400. Its totient is φ = 33749581824.

The previous prime is 74572248763. The next prime is 74572248787. The reversal of 74572248765 is 56784227547.

It is not a de Polignac number, because 74572248765 - 2¹ = 74572248763 is a prime.

It is a super-2 number, since 2×74572248765² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74572248761) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11968671 + ... + 11974899.

It is an arithmetic number, because the mean of its divisors is an integer number (2151966600).

Almost surely, 2^74572248765 is an apocalyptic number.

It is an amenable number.

74572248765 is a deficient number, since it is larger than the sum of its proper divisors (63153613635).

74572248765 is a wasteful number, since it uses less digits than its factorization.

74572248765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366.

The product of its digits is 26342400, while the sum is 57.

The spelling of 74572248765 in words is "seventy-four billion, five hundred seventy-two million, two hundred forty-eight thousand, seven hundred sixty-five".