91653568748842 has 8 divisors (see below), whose sum is σ = 137480696963136. Its totient is φ = 45826669761132.

The previous prime is 91653568748759. The next prime is 91653568748849. The reversal of 91653568748842 is 24884786535619.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (91653568748849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56303538 + ... + 57908509.

It is an arithmetic number, because the mean of its divisors is an integer number (17185087120392).

Almost surely, 2^{91653568748842} is an apocalyptic number.

91653568748842 is a deficient number, since it is larger than the sum of its proper divisors (45827128214294).

91653568748842 is a wasteful number, since it uses less digits than its factorization.

91653568748842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114613292.

The product of its digits is 2786918400, while the sum is 76.

The spelling of 91653568748842 in words is "ninety-one trillion, six hundred fifty-three billion, five hundred sixty-eight million, seven hundred forty-eight thousand, eight hundred forty-two".