74493581885 has 8 divisors (see below), whose sum is σ = 94650668856. Its totient is φ = 56089285120.

The previous prime is 74493581863. The next prime is 74493581923. The reversal of 74493581885 is 58818539447.

It can be written as a sum of positive squares in 4 ways, for example, as 21375317209 + 53118264676 = 146203^2 + 230474^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74493581885 - 2⁸ = 74493581629 is a prime.

It is a super-3 number, since 3×74493581885³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438197456 + ... + 438197625.

It is an arithmetic number, because the mean of its divisors is an integer number (11831333607).

Almost surely, 2^74493581885 is an apocalyptic number.

It is an amenable number.

74493581885 is a deficient number, since it is larger than the sum of its proper divisors (20157086971).

74493581885 is a wasteful number, since it uses less digits than its factorization.

74493581885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876395103.

The product of its digits is 38707200, while the sum is 62.

The spelling of 74493581885 in words is "seventy-four billion, four hundred ninety-three million, five hundred eighty-one thousand, eight hundred eighty-five".