9290991998280 has 64 divisors (see below), whose sum is σ = 28186155532800. Its totient is φ = 2449759685120.

The previous prime is 9290991998273. The next prime is 9290991998303. The reversal of 9290991998280 is 828991990929.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434960856 + ... + 434982215.

It is an arithmetic number, because the mean of its divisors is an integer number (440408680200).

Almost surely, 2^{9290991998280} is an apocalyptic number.

It is an amenable number.

9290991998280 is an abundant number, since it is smaller than the sum of its proper divisors (18895163534520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9290991998280 is a wasteful number, since it uses less digits than its factorization.

9290991998280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869943174 (or 869943170 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 75.

The spelling of 9290991998280 in words is "nine trillion, two hundred ninety billion, nine hundred ninety-one million, nine hundred ninety-eight thousand, two hundred eighty".