74338764641 has 8 divisors (see below), whose sum is σ = 76244469504. Its totient is φ = 72437467680.

The previous prime is 74338764629. The next prime is 74338764679. The reversal of 74338764641 is 14646783347.

It is a happy number.

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 74338764641 - 2²² = 74334570337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74338764611) 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, 1067801 + ... + 1135286.

It is an arithmetic number, because the mean of its divisors is an integer number (9530558688).

Almost surely, 2^74338764641 is an apocalyptic number.

It is an amenable number.

74338764641 is a deficient number, since it is larger than the sum of its proper divisors (1905704863).

74338764641 is a wasteful number, since it uses less digits than its factorization.

74338764641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203951.

The product of its digits is 8128512, while the sum is 53.

The spelling of 74338764641 in words is "seventy-four billion, three hundred thirty-eight million, seven hundred sixty-four thousand, six hundred forty-one".