74642219040 has 96 divisors (see below), whose sum is σ = 240125679360. Its totient is φ = 19481083904.

The previous prime is 74642218999. The next prime is 74642219053. The reversal of 74642219040 is 4091224647.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 74642219040.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1631745 + ... + 1676864.

It is an arithmetic number, because the mean of its divisors is an integer number (2501309160).

Almost surely, 2^74642219040 is an apocalyptic number.

It is an amenable number.

74642219040 is an abundant number, since it is smaller than the sum of its proper divisors (165483460320).

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

74642219040 is a wasteful number, since it uses less digits than its factorization.

74642219040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308674 (or 3308666 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 74642219040 in words is "seventy-four billion, six hundred forty-two million, two hundred nineteen thousand, forty".