2136540576925 has 6 divisors (see below), whose sum is σ = 2649310315418. Its totient is φ = 1709232461520.

The previous prime is 2136540576917. The next prime is 2136540576959. The reversal of 2136540576925 is 5296750456312.

It can be written as a sum of positive squares in 3 ways, for example, as 608582533689 + 1527958043236 = 780117^2 + 1236106^2 .

It is not a de Polignac number, because 2136540576925 - 2³ = 2136540576917 is a prime.

It is a super-4 number, since 4×2136540576925⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

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, 42730811514 + ... + 42730811563.

Almost surely, 2^{2136540576925} is an apocalyptic number.

2136540576925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2136540576925 is a deficient number, since it is larger than the sum of its proper divisors (512769738493).

2136540576925 is an equidigital number, since it uses as much as digits as its factorization.

2136540576925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85461623087 (or 85461623082 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 2136540576925 in words is "two trillion, one hundred thirty-six billion, five hundred forty million, five hundred seventy-six thousand, nine hundred twenty-five".