74087959691 has 2 divisors, whose sum is σ = 74087959692. Its totient is φ = 74087959690.

The previous prime is 74087959639. The next prime is 74087959723. The reversal of 74087959691 is 19695978047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74087959691 - 2³⁰ = 73014217867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (74087959601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37043979845 + 37043979846.

It is an arithmetic number, because the mean of its divisors is an integer number (37043979846).

Almost surely, 2^74087959691 is an apocalyptic number.

74087959691 is a deficient number, since it is larger than the sum of its proper divisors (1).

74087959691 is an equidigital number, since it uses as much as digits as its factorization.

74087959691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34292160, while the sum is 65.

The spelling of 74087959691 in words is "seventy-four billion, eighty-seven million, nine hundred fifty-nine thousand, six hundred ninety-one".