74674134515 has 16 divisors (see below), whose sum is σ = 90041973408. Its totient is φ = 59450858496.

The previous prime is 74674134503. The next prime is 74674134517. The reversal of 74674134515 is 51543147647.

It is a cyclic number.

It is not a de Polignac number, because 74674134515 - 2²⁶ = 74607025651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74674134515.

It is not an unprimeable number, because it can be changed into a prime (74674134517) 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, 2930369 + ... + 2955741.

It is an arithmetic number, because the mean of its divisors is an integer number (5627623338).

Almost surely, 2^74674134515 is an apocalyptic number.

74674134515 is a deficient number, since it is larger than the sum of its proper divisors (15367838893).

74674134515 is a wasteful number, since it uses less digits than its factorization.

74674134515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28198.

The product of its digits is 1411200, while the sum is 47.

The spelling of 74674134515 in words is "seventy-four billion, six hundred seventy-four million, one hundred thirty-four thousand, five hundred fifteen".