74451642433 has 8 divisors (see below), whose sum is σ = 85306328640. Its totient is φ = 63651640560.

The previous prime is 74451642427. The next prime is 74451642527. The reversal of 74451642433 is 33424615447.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74451642433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74451642433.

It is not an unprimeable number, because it can be changed into a prime (74451643433) 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, 13668163 + ... + 13673608.

It is an arithmetic number, because the mean of its divisors is an integer number (10663291080).

Almost surely, 2^74451642433 is an apocalyptic number.

It is an amenable number.

74451642433 is a deficient number, since it is larger than the sum of its proper divisors (10854686207).

74451642433 is a wasteful number, since it uses less digits than its factorization.

74451642433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27342167.

The product of its digits is 967680, while the sum is 43.

The spelling of 74451642433 in words is "seventy-four billion, four hundred fifty-one million, six hundred forty-two thousand, four hundred thirty-three".