74513812215 has 16 divisors (see below), whose sum is σ = 119233604448. Its totient is φ = 39736864896.

The previous prime is 74513812201. The next prime is 74513812273. The reversal of 74513812215 is 51221831547.

It is not a de Polignac number, because 74513812215 - 2⁴ = 74513812199 is a prime.

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, 75432 + ... + 393341.

It is an arithmetic number, because the mean of its divisors is an integer number (7452100278).

Almost surely, 2^74513812215 is an apocalyptic number.

74513812215 is a deficient number, since it is larger than the sum of its proper divisors (44719792233).

74513812215 is a wasteful number, since it uses less digits than its factorization.

74513812215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479378.

The product of its digits is 67200, while the sum is 39.

The spelling of 74513812215 in words is "seventy-four billion, five hundred thirteen million, eight hundred twelve thousand, two hundred fifteen".