74441538731 has 24 divisors (see below), whose sum is σ = 90420243360. Its totient is φ = 60023549952.

The previous prime is 74441538701. The next prime is 74441538733. The reversal of 74441538731 is 13783514447.

It is not a de Polignac number, because 74441538731 - 2¹⁴ = 74441522347 is a prime.

It is a super-2 number, since 2×74441538731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74441538733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4590185 + ... + 4606373.

It is an arithmetic number, because the mean of its divisors is an integer number (3767510140).

Almost surely, 2^74441538731 is an apocalyptic number.

74441538731 is a deficient number, since it is larger than the sum of its proper divisors (15978704629).

74441538731 is a wasteful number, since it uses less digits than its factorization.

74441538731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18503 (or 18486 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The spelling of 74441538731 in words is "seventy-four billion, four hundred forty-one million, five hundred thirty-eight thousand, seven hundred thirty-one".