2091098880 has 216 divisors, whose sum is σ = 7792079568. Its totient is φ = 514695168.

The previous prime is 2091098861. The next prime is 2091098899. The reversal of 2091098880 is 888901902.

It is an interprime number because it is at equal distance from previous prime (2091098861) and next prime (2091098899).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142779 + ... + 156741.

Almost surely, 2^2091098880 is an apocalyptic number.

2091098880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091098880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3896039784).

2091098880 is an abundant number, since it is smaller than the sum of its proper divisors (5700980688).

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

2091098880 is a wasteful number, since it uses less digits than its factorization.

2091098880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003 (or 13986 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 2091098880 is about 45728.5346364827. The cubic root of 2091098880 is about 1278.7673028220.

The spelling of 2091098880 in words is "two billion, ninety-one million, ninety-eight thousand, eight hundred eighty".