74572248764 has 24 divisors (see below), whose sum is σ = 142319002560. Its totient is φ = 33982288704.

The previous prime is 74572248763. The next prime is 74572248787. The reversal of 74572248764 is 46784227547.

It is a super-2 number, since 2×74572248764² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 9072359 + ... + 9080574.

It is an arithmetic number, because the mean of its divisors is an integer number (5929958440).

Almost surely, 2^74572248764 is an apocalyptic number.

It is an amenable number.

74572248764 is a deficient number, since it is larger than the sum of its proper divisors (67746753796).

74572248764 is a wasteful number, since it uses less digits than its factorization.

74572248764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18153029 (or 18153027 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 56.

The spelling of 74572248764 in words is "seventy-four billion, five hundred seventy-two million, two hundred forty-eight thousand, seven hundred sixty-four".