74494444328 has 8 divisors (see below), whose sum is σ = 139677083130. Its totient is φ = 37247222160.

The previous prime is 74494444303. The next prime is 74494444373. The reversal of 74494444328 is 82344449447.

It can be written as a sum of positive squares in only one way, i.e., 57610560484 + 16883883844 = 240022^2 + 129938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 74494444328.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4655902763 + ... + 4655902778.

Almost surely, 2^74494444328 is an apocalyptic number.

It is an amenable number.

74494444328 is a deficient number, since it is larger than the sum of its proper divisors (65182638802).

74494444328 is a wasteful number, since it uses less digits than its factorization.

74494444328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311805547 (or 9311805543 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 53.

The spelling of 74494444328 in words is "seventy-four billion, four hundred ninety-four million, four hundred forty-four thousand, three hundred twenty-eight".