74731084845 has 16 divisors (see below), whose sum is σ = 120372220800. Its totient is φ = 39589083584.

The previous prime is 74731084793. The next prime is 74731084891. The reversal of 74731084845 is 54848013747.

It is a cyclic number.

It is not a de Polignac number, because 74731084845 - 2¹³ = 74731076653 is a prime.

It is a super-2 number, since 2×74731084845² (a number of 23 digits) contains 22 as substring.

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, 16716129 + ... + 16720598.

It is an arithmetic number, because the mean of its divisors is an integer number (7523263800).

Almost surely, 2^74731084845 is an apocalyptic number.

It is an amenable number.

74731084845 is a deficient number, since it is larger than the sum of its proper divisors (45641135955).

74731084845 is a wasteful number, since it uses less digits than its factorization.

74731084845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33436884.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 74731084845 in words is "seventy-four billion, seven hundred thirty-one million, eighty-four thousand, eight hundred forty-five".