74993631631 has 8 divisors (see below), whose sum is σ = 75775340480. Its totient is φ = 74212098048.

The previous prime is 74993631623. The next prime is 74993631637. The reversal of 74993631631 is 13613639947.

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 74993631631 - 2³ = 74993631623 is a prime.

It is a super-2 number, since 2×74993631631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74993631637) 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, 928015 + ... + 1005583.

It is an arithmetic number, because the mean of its divisors is an integer number (9471917560).

Almost surely, 2^74993631631 is an apocalyptic number.

74993631631 is a deficient number, since it is larger than the sum of its proper divisors (781708849).

74993631631 is an equidigital number, since it uses as much as digits as its factorization.

74993631631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87633.

The product of its digits is 2204496, while the sum is 52.

The spelling of 74993631631 in words is "seventy-four billion, nine hundred ninety-three million, six hundred thirty-one thousand, six hundred thirty-one".