74451323425 has 6 divisors (see below), whose sum is σ = 92319641078. Its totient is φ = 59561058720.

The previous prime is 74451323369. The next prime is 74451323431. The reversal of 74451323425 is 52432315447.

It can be written as a sum of positive squares in 3 ways, for example, as 6145932816 + 68305390609 = 78396^2 + 261353^2 .

It is a de Polignac number, because none of the positive numbers 2^k-74451323425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1489026444 + ... + 1489026493.

Almost surely, 2^74451323425 is an apocalyptic number.

It is an amenable number.

74451323425 is a deficient number, since it is larger than the sum of its proper divisors (17868317653).

74451323425 is a wasteful number, since it uses less digits than its factorization.

74451323425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978052947 (or 2978052942 counting only the distinct ones).

The product of its digits is 403200, while the sum is 40.

The spelling of 74451323425 in words is "seventy-four billion, four hundred fifty-one million, three hundred twenty-three thousand, four hundred twenty-five".