74235881394 has 24 divisors (see below), whose sum is σ = 161104279440. Its totient is φ = 24705313848.

The previous prime is 74235881383. The next prime is 74235881431. The reversal of 74235881394 is 49318853247.

It is a happy number.

74235881394 is a `hidden beast` number, since 7 + 4 + 23 + 588 + 1 + 39 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 74235881394.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320212 + ... + 3342495.

It is an arithmetic number, because the mean of its divisors is an integer number (6712678310).

Almost surely, 2^74235881394 is an apocalyptic number.

74235881394 is an abundant number, since it is smaller than the sum of its proper divisors (86868398046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74235881394 is a wasteful number, since it uses less digits than its factorization.

74235881394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663334 (or 6663331 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 74235881394 in words is "seventy-four billion, two hundred thirty-five million, eight hundred eighty-one thousand, three hundred ninety-four".