75342453961 has 2 divisors, whose sum is σ = 75342453962. Its totient is φ = 75342453960.

The previous prime is 75342453931. The next prime is 75342454001. The reversal of 75342453961 is 16935424357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40739385600 + 34603068361 = 201840^2 + 186019^2 .

It is an emirp because it is prime and its reverse (16935424357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75342453961 - 2¹¹ = 75342451913 is a prime.

It is not a weakly prime, because it can be changed into another prime (75342453911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37671226980 + 37671226981.

It is an arithmetic number, because the mean of its divisors is an integer number (37671226981).

Almost surely, 2^75342453961 is an apocalyptic number.

It is an amenable number.

75342453961 is a deficient number, since it is larger than the sum of its proper divisors (1).

75342453961 is an equidigital number, since it uses as much as digits as its factorization.

75342453961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 49.

The spelling of 75342453961 in words is "seventy-five billion, three hundred forty-two million, four hundred fifty-three thousand, nine hundred sixty-one".