74643157115 has 16 divisors (see below), whose sum is σ = 91292184000. Its totient is φ = 58568345472.

The previous prime is 74643157097. The next prime is 74643157117. The reversal of 74643157115 is 51175134647.

It is a cyclic number.

It is not a de Polignac number, because 74643157115 - 2¹⁸ = 74642894971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74643157117) 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, 778586 + ... + 869184.

It is an arithmetic number, because the mean of its divisors is an integer number (5705761500).

Almost surely, 2^74643157115 is an apocalyptic number.

74643157115 is a deficient number, since it is larger than the sum of its proper divisors (16649026885).

74643157115 is a wasteful number, since it uses less digits than its factorization.

74643157115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93766.

The product of its digits is 352800, while the sum is 44.

The spelling of 74643157115 in words is "seventy-four billion, six hundred forty-three million, one hundred fifty-seven thousand, one hundred fifteen".