2091913080 has 64 divisors (see below), whose sum is σ = 6305558400. Its totient is φ = 555192960.

The previous prime is 2091913073. The next prime is 2091913093. The reversal of 2091913080 is 803191902.

It is a super-2 number, since 2×2091913080² = 8752200668550172800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15990 + ... + 66629.

It is an arithmetic number, because the mean of its divisors is an integer number (98524350).

Almost surely, 2^2091913080 is an apocalyptic number.

2091913080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2091913080 is an abundant number, since it is smaller than the sum of its proper divisors (4213645320).

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

2091913080 is a wasteful number, since it uses less digits than its factorization.

2091913080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82844 (or 82840 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 2091913080 is about 45737.4363076900. The cubic root of 2091913080 is about 1278.9332502169.

The spelling of 2091913080 in words is "two billion, ninety-one million, nine hundred thirteen thousand, eighty".