2125791198 has 12 divisors (see below), whose sum is σ = 4605880968. Its totient is φ = 708597060.

The previous prime is 2125791131. The next prime is 2125791221. The reversal of 2125791198 is 8911975212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59049738 + ... + 59049773.

It is an arithmetic number, because the mean of its divisors is an integer number (383823414).

Almost surely, 2^2125791198 is an apocalyptic number.

2125791198 is an abundant number, since it is smaller than the sum of its proper divisors (2480089770).

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

2125791198 is a wasteful number, since it uses less digits than its factorization.

2125791198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118099519 (or 118099516 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 2125791198 is about 46106.3032350242. The cubic root of 2125791198 is about 1285.8003357540.

The spelling of 2125791198 in words is "two billion, one hundred twenty-five million, seven hundred ninety-one thousand, one hundred ninety-eight".