74733751421331 has 4 divisors (see below), whose sum is σ = 99645001895112. Its totient is φ = 49822500947552.

The previous prime is 74733751421321. The next prime is 74733751421339. The reversal of 74733751421331 is 13312415733747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74733751421331 - 2¹⁷ = 74733751290259 is a prime.

It is a super-2 number, since 2×74733751421331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74733751421339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12455625236886 + ... + 12455625236891.

It is an arithmetic number, because the mean of its divisors is an integer number (24911250473778).

Almost surely, 2^{74733751421331} is an apocalyptic number.

74733751421331 is a deficient number, since it is larger than the sum of its proper divisors (24911250473781).

74733751421331 is a wasteful number, since it uses less digits than its factorization.

74733751421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24911250473780.

The product of its digits is 4445280, while the sum is 51.

The spelling of 74733751421331 in words is "seventy-four trillion, seven hundred thirty-three billion, seven hundred fifty-one million, four hundred twenty-one thousand, three hundred thirty-one".