74859390666451 has 4 divisors (see below), whose sum is σ = 74926892372400. Its totient is φ = 74791888960504.

The previous prime is 74859390666449. The next prime is 74859390666461. The reversal of 74859390666451 is 15466609395847.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74859390666451 - 2¹ = 74859390666449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74859390666461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33750851311 + ... + 33750853528.

It is an arithmetic number, because the mean of its divisors is an integer number (18731723093100).

Almost surely, 2^{74859390666451} is an apocalyptic number.

74859390666451 is a deficient number, since it is larger than the sum of its proper divisors (67501705949).

74859390666451 is a wasteful number, since it uses less digits than its factorization.

74859390666451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67501705948.

The product of its (nonzero) digits is 1175731200, while the sum is 73.

The spelling of 74859390666451 in words is "seventy-four trillion, eight hundred fifty-nine billion, three hundred ninety million, six hundred sixty-six thousand, four hundred fifty-one".