74245572423 has 12 divisors (see below), whose sum is σ = 116993023368. Its totient is φ = 44997316560.

The previous prime is 74245572419. The next prime is 74245572449. The reversal of 74245572423 is 32427554247.

74245572423 is a `hidden beast` number, since 74 + 2 + 4 + 5 + 572 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 74245572423 - 2² = 74245572419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74245572493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374977540 + ... + 374977737.

It is an arithmetic number, because the mean of its divisors is an integer number (9749418614).

Almost surely, 2^74245572423 is an apocalyptic number.

74245572423 is a deficient number, since it is larger than the sum of its proper divisors (42747450945).

74245572423 is a wasteful number, since it uses less digits than its factorization.

74245572423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749955294 (or 749955291 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 45.

The spelling of 74245572423 in words is "seventy-four billion, two hundred forty-five million, five hundred seventy-two thousand, four hundred twenty-three".