2125789757 has 16 divisors (see below), whose sum is σ = 2617440000. Its totient is φ = 1681247232.

The previous prime is 2125789741. The next prime is 2125789759. The reversal of 2125789757 is 7579875212.

It is not a de Polignac number, because 2125789757 - 2⁴ = 2125789741 is a prime.

It is a super-2 number, since 2×2125789757² = 9037964181932238098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2125789699 and 2125789708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125789759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422744 + ... + 427742.

It is an arithmetic number, because the mean of its divisors is an integer number (163590000).

Almost surely, 2^2125789757 is an apocalyptic number.

It is an amenable number.

2125789757 is a deficient number, since it is larger than the sum of its proper divisors (491650243).

2125789757 is a wasteful number, since it uses less digits than its factorization.

2125789757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9692.

The product of its digits is 2469600, while the sum is 53.

The square root of 2125789757 is about 46106.2876080909. The cubic root of 2125789757 is about 1285.8000452208.

The spelling of 2125789757 in words is "two billion, one hundred twenty-five million, seven hundred eighty-nine thousand, seven hundred fifty-seven".