74541963361 has 2 divisors, whose sum is σ = 74541963362. Its totient is φ = 74541963360.

The previous prime is 74541963337. The next prime is 74541963401. The reversal of 74541963361 is 16336914547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46804726336 + 27737237025 = 216344^2 + 166545^2 .

It is a cyclic number.

It is not a de Polignac number, because 74541963361 - 2⁵ = 74541963329 is a prime.

It is not a weakly prime, because it can be changed into another prime (74541963061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37270981680 + 37270981681.

It is an arithmetic number, because the mean of its divisors is an integer number (37270981681).

Almost surely, 2^74541963361 is an apocalyptic number.

It is an amenable number.

74541963361 is a deficient number, since it is larger than the sum of its proper divisors (1).

74541963361 is an equidigital number, since it uses as much as digits as its factorization.

74541963361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 49.

The spelling of 74541963361 in words is "seventy-four billion, five hundred forty-one million, nine hundred sixty-three thousand, three hundred sixty-one".