74394843344 has 10 divisors (see below), whose sum is σ = 144140009010. Its totient is φ = 37197421664.

The previous prime is 74394843343. The next prime is 74394843377. The reversal of 74394843344 is 44334849347.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62560014400 + 11834828944 = 250120^2 + 108788^2 .

It is a super-2 number, since 2×74394843344² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74394843343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324838839 + ... + 2324838870.

It is an arithmetic number, because the mean of its divisors is an integer number (14414000901).

Almost surely, 2^74394843344 is an apocalyptic number.

It is an amenable number.

74394843344 is a deficient number, since it is larger than the sum of its proper divisors (69745165666).

74394843344 is a wasteful number, since it uses less digits than its factorization.

74394843344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649677717 (or 4649677711 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 53.

The spelling of 74394843344 in words is "seventy-four billion, three hundred ninety-four million, eight hundred forty-three thousand, three hundred forty-four".