75023547961 has 2 divisors, whose sum is σ = 75023547962. Its totient is φ = 75023547960.

The previous prime is 75023547931. The next prime is 75023548001. The reversal of 75023547961 is 16974532057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48545749561 + 26477798400 = 220331^2 + 162720^2 .

It is a cyclic number.

It is not a de Polignac number, because 75023547961 - 2²⁹ = 74486677049 is a prime.

It is not a weakly prime, because it can be changed into another prime (75023547931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37511773980 + 37511773981.

It is an arithmetic number, because the mean of its divisors is an integer number (37511773981).

Almost surely, 2^75023547961 is an apocalyptic number.

It is an amenable number.

75023547961 is a deficient number, since it is larger than the sum of its proper divisors (1).

75023547961 is an equidigital number, since it uses as much as digits as its factorization.

75023547961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 75023547961 in words is "seventy-five billion, twenty-three million, five hundred forty-seven thousand, nine hundred sixty-one".