74116515021 has 16 divisors (see below), whose sum is σ = 100518235200. Its totient is φ = 48563257088.

The previous prime is 74116515007. The next prime is 74116515049. The reversal of 74116515021 is 12051561147.

It is a cyclic number.

It is not a de Polignac number, because 74116515021 - 2²² = 74112320717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74116515521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844795 + ... + 928391.

It is an arithmetic number, because the mean of its divisors is an integer number (6282389700).

Almost surely, 2^74116515021 is an apocalyptic number.

It is an amenable number.

74116515021 is a deficient number, since it is larger than the sum of its proper divisors (26401720179).

74116515021 is a wasteful number, since it uses less digits than its factorization.

74116515021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88668.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 74116515021 in words is "seventy-four billion, one hundred sixteen million, five hundred fifteen thousand, twenty-one".