74906436025 has 6 divisors (see below), whose sum is σ = 92883980702. Its totient is φ = 59925148800.

The previous prime is 74906436013. The next prime is 74906436079. The reversal of 74906436025 is 52063460947.

It can be written as a sum of positive squares in 3 ways, for example, as 4526060176 + 70380375849 = 67276^2 + 265293^2 .

It is not a de Polignac number, because 74906436025 - 2⁷ = 74906435897 is a prime.

It is a super-2 number, since 2×74906436025² (a number of 23 digits) contains 22 as substring.

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, 1498128696 + ... + 1498128745.

Almost surely, 2^74906436025 is an apocalyptic number.

It is an amenable number.

74906436025 is a deficient number, since it is larger than the sum of its proper divisors (17977544677).

74906436025 is a wasteful number, since it uses less digits than its factorization.

74906436025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996257451 (or 2996257446 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 74906436025 in words is "seventy-four billion, nine hundred six million, four hundred thirty-six thousand, twenty-five".