91992001802 has 16 divisors (see below), whose sum is σ = 138191732640. Its totient is φ = 45928139568.

The previous prime is 91992001741. The next prime is 91992001831. The reversal of 91992001802 is 20810029919.

It is a self number, because there is not a number n which added to its sum of digits gives 91992001802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4323113 + ... + 4344339.

It is an arithmetic number, because the mean of its divisors is an integer number (8636983290).

Almost surely, 2^91992001802 is an apocalyptic number.

91992001802 is a deficient number, since it is larger than the sum of its proper divisors (46199730838).

91992001802 is a wasteful number, since it uses less digits than its factorization.

91992001802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24325.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 91992001802 in words is "ninety-one billion, nine hundred ninety-two million, one thousand, eight hundred two".