2199090298878 has 192 divisors, whose sum is σ = 5393680201728. Its totient is φ = 641520000000.

The previous prime is 2199090298877. The next prime is 2199090298879. The reversal of 2199090298878 is 8788920909912.

It is an interprime number because it is at equal distance from previous prime (2199090298877) and next prime (2199090298879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199090298877) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1221037578 + ... + 1221039378.

It is an arithmetic number, because the mean of its divisors is an integer number (28092084384).

Almost surely, 2^{2199090298878} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2199090298878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2696840100864).

2199090298878 is an abundant number, since it is smaller than the sum of its proper divisors (3194589902850).

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

2199090298878 is a wasteful number, since it uses less digits than its factorization.

2199090298878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783 (or 2780 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 72.

The spelling of 2199090298878 in words is "two trillion, one hundred ninety-nine billion, ninety million, two hundred ninety-eight thousand, eight hundred seventy-eight".