74375652961 has 3 divisors (see below), whose sum is σ = 74375925681. Its totient is φ = 74375380242.

The previous prime is 74375652907. The next prime is 74375652977. The reversal of 74375652961 is 16925657347.

It is a happy number.

The square root of 74375652961 is 272719.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16925657347 = 499 ⋅33919153.

It is not a de Polignac number, because 74375652961 - 2²⁵ = 74342098529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74375682961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 136360 + ... + 409078.

It is an arithmetic number, because the mean of its divisors is an integer number (24791975227).

Almost surely, 2^74375652961 is an apocalyptic number.

74375652961 is the 272719-th square number.

74375652961 is the 136360-th centered octagonal number.

It is an amenable number.

74375652961 is a deficient number, since it is larger than the sum of its proper divisors (272720).

74375652961 is an frugal number, since it uses more digits than its factorization.

74375652961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545438 (or 272719 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 55.

The spelling of 74375652961 in words is "seventy-four billion, three hundred seventy-five million, six hundred fifty-two thousand, nine hundred sixty-one".