74969178025 has 27 divisors (see below), whose sum is σ = 108153039351. Its totient is φ = 51400865040.

The previous prime is 74969178007. The next prime is 74969178043. The reversal of 74969178025 is 52087196947.

The square root of 74969178025 is 273805.

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

It is an interprime number because it is at equal distance from previous prime (74969178007) and next prime (74969178043).

It can be written as a sum of positive squares in only one way, i.e., 26988904089 + 47980273936 = 164283^2 + 219044^2 .

It is not a de Polignac number, because 74969178025 - 2¹⁹ = 74968653737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9579264 + ... + 9587086.

Almost surely, 2^74969178025 is an apocalyptic number.

74969178025 is the 273805-th square number.

74969178025 is the 136903-rd centered octagonal number.

It is an amenable number.

74969178025 is a deficient number, since it is larger than the sum of its proper divisors (33183861326).

74969178025 is an frugal number, since it uses more digits than its factorization.

74969178025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15670 (or 7835 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 74969178025 in words is "seventy-four billion, nine hundred sixty-nine million, one hundred seventy-eight thousand, twenty-five".