91861153442092 has 12 divisors (see below), whose sum is σ = 164677921414776. Its totient is φ = 44810318752160.

The previous prime is 91861153442089. The next prime is 91861153442111. The reversal of 91861153442092 is 29024435116819.

It is an unprimeable number.

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, 280064492038 + ... + 280064492365.

It is an arithmetic number, because the mean of its divisors is an integer number (13723160117898).

Almost surely, 2^{91861153442092} is an apocalyptic number.

It is an amenable number.

91861153442092 is a deficient number, since it is larger than the sum of its proper divisors (72816767972684).

91861153442092 is a wasteful number, since it uses less digits than its factorization.

91861153442092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560128984448 (or 560128984446 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 91861153442092 in words is "ninety-one trillion, eight hundred sixty-one billion, one hundred fifty-three million, four hundred forty-two thousand, ninety-two".