74390380516 has 9 divisors (see below), whose sum is σ = 130184120521. Its totient is φ = 37194917512.

The previous prime is 74390380453. The next prime is 74390380543. The reversal of 74390380516 is 61508309347.

The square root of 74390380516 is 272746.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 63217044900 + 11173335616 = 251430^2 + 105704^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 477306 + ... + 613678.

Almost surely, 2^74390380516 is an apocalyptic number.

74390380516 is the 272746-th square number.

It is an amenable number.

74390380516 is a deficient number, since it is larger than the sum of its proper divisors (55793740005).

74390380516 is an frugal number, since it uses more digits than its factorization.

74390380516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272750 (or 136375 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 74390380516 in words is "seventy-four billion, three hundred ninety million, three hundred eighty thousand, five hundred sixteen".