74175433378681 has 8 divisors (see below), whose sum is σ = 75182463060480. Its totient is φ = 73170106200672.

The previous prime is 74175433378633. The next prime is 74175433378691. The reversal of 74175433378681 is 18687333457147.

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 a de Polignac number, because none of the positive numbers 2^k-74175433378681 is a prime.

It is a super-2 number, since 2×74175433378681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74175433378691) 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, 425538220 + ... + 425712493.

It is an arithmetic number, because the mean of its divisors is an integer number (9397807882560).

Almost surely, 2^{74175433378681} is an apocalyptic number.

It is an amenable number.

74175433378681 is a deficient number, since it is larger than the sum of its proper divisors (1007029681799).

74175433378681 is a wasteful number, since it uses less digits than its factorization.

74175433378681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851251895.

The product of its digits is 284497920, while the sum is 67.

The spelling of 74175433378681 in words is "seventy-four trillion, one hundred seventy-five billion, four hundred thirty-three million, three hundred seventy-eight thousand, six hundred eighty-one".