74551013615 has 16 divisors (see below), whose sum is σ = 97243257888. Its totient is φ = 54538536576.

The previous prime is 74551013609. The next prime is 74551013627. The reversal of 74551013615 is 51631015547.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74551013615 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5352572 + ... + 5366481.

It is an arithmetic number, because the mean of its divisors is an integer number (6077703618).

Almost surely, 2^74551013615 is an apocalyptic number.

74551013615 is a deficient number, since it is larger than the sum of its proper divisors (22692244273).

74551013615 is a wasteful number, since it uses less digits than its factorization.

74551013615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719178.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 74551013615 in words is "seventy-four billion, five hundred fifty-one million, thirteen thousand, six hundred fifteen".