74342279865 has 24 divisors (see below), whose sum is σ = 138367673280. Its totient is φ = 33985041888.

The previous prime is 74342279857. The next prime is 74342279881. The reversal of 74342279865 is 56897224347.

It is not a de Polignac number, because 74342279865 - 2³ = 74342279857 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50572245 + ... + 50573714.

It is an arithmetic number, because the mean of its divisors is an integer number (5765319720).

Almost surely, 2^74342279865 is an apocalyptic number.

It is an amenable number.

74342279865 is a deficient number, since it is larger than the sum of its proper divisors (64025393415).

74342279865 is a wasteful number, since it uses less digits than its factorization.

74342279865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101145981 (or 101145974 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 57.

The spelling of 74342279865 in words is "seventy-four billion, three hundred forty-two million, two hundred seventy-nine thousand, eight hundred sixty-five".