2100791725 has 12 divisors (see below), whose sum is σ = 2689014400. Its totient is φ = 1626418800.

The previous prime is 2100791699. The next prime is 2100791731. The reversal of 2100791725 is 5271970012.

It is not a de Polignac number, because 2100791725 - 2¹⁹ = 2100267437 is a prime.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 1354575 + ... + 1356124.

Almost surely, 2^2100791725 is an apocalyptic number.

2100791725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100791725 is a deficient number, since it is larger than the sum of its proper divisors (588222675).

2100791725 is a wasteful number, since it uses less digits than its factorization.

2100791725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710740 (or 2710735 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 2100791725 is about 45834.3945634717. The cubic root of 2100791725 is about 1280.7400759641.

The spelling of 2100791725 in words is "two billion, one hundred million, seven hundred ninety-one thousand, seven hundred twenty-five".