74949465361 has 9 divisors (see below), whose sum is σ = 78356402089. Its totient is φ = 71684770036.

The previous prime is 74949465337. The next prime is 74949465427. The reversal of 74949465361 is 16356494947.

The square root of 74949465361 is 273769.

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

It is not a de Polignac number, because 74949465361 - 2²³ = 74941076753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74949465296 and 74949465305.

It is not an unprimeable number, because it can be changed into a prime (74949465061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6290736 + ... + 6302638.

Almost surely, 2^74949465361 is an apocalyptic number.

74949465361 is the 273769-th square number.

74949465361 is the 136885-th centered octagonal number.

It is an amenable number.

74949465361 is a deficient number, since it is larger than the sum of its proper divisors (3406936728).

74949465361 is an frugal number, since it uses more digits than its factorization.

74949465361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23852 (or 11926 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The spelling of 74949465361 in words is "seventy-four billion, nine hundred forty-nine million, four hundred sixty-five thousand, three hundred sixty-one".