74715672971 has 4 divisors (see below), whose sum is σ = 74758788192. Its totient is φ = 74672557752.

The previous prime is 74715672959. The next prime is 74715673007. The reversal of 74715672971 is 17927651747.

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 74715672971 - 2¹⁸ = 74715410827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74715672271) 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, 21555011 + ... + 21558476.

It is an arithmetic number, because the mean of its divisors is an integer number (18689697048).

Almost surely, 2^74715672971 is an apocalyptic number.

74715672971 is a deficient number, since it is larger than the sum of its proper divisors (43115221).

74715672971 is a wasteful number, since it uses less digits than its factorization.

74715672971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43115220.

The product of its digits is 5186160, while the sum is 56.

The spelling of 74715672971 in words is "seventy-four billion, seven hundred fifteen million, six hundred seventy-two thousand, nine hundred seventy-one".