74243231881 has 8 divisors (see below), whose sum is σ = 91376285504. Its totient is φ = 58741897680.

The previous prime is 74243231819. The next prime is 74243231897. The reversal of 74243231881 is 18813234247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74243231881 - 2⁹ = 74243231369 is a prime.

It is a super-2 number, since 2×74243231881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74243231281) 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, 407929755 + ... + 407929936.

It is an arithmetic number, because the mean of its divisors is an integer number (11422035688).

Almost surely, 2^74243231881 is an apocalyptic number.

It is an amenable number.

74243231881 is a deficient number, since it is larger than the sum of its proper divisors (17133053623).

74243231881 is a wasteful number, since it uses less digits than its factorization.

74243231881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815859711.

The product of its digits is 258048, while the sum is 43.

The spelling of 74243231881 in words is "seventy-four billion, two hundred forty-three million, two hundred thirty-one thousand, eight hundred eighty-one".