26125792009 has 4 divisors (see below), whose sum is σ = 26126227204. Its totient is φ = 26125356816.

The previous prime is 26125791983. The next prime is 26125792087. The reversal of 26125792009 is 90029752162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14078534409 + 12047257600 = 118653^2 + 109760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26125792009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26125798009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109722 + ... + 253555.

It is an arithmetic number, because the mean of its divisors is an integer number (6531556801).

Almost surely, 2^26125792009 is an apocalyptic number.

It is an amenable number.

26125792009 is a deficient number, since it is larger than the sum of its proper divisors (435195).

26125792009 is an equidigital number, since it uses as much as digits as its factorization.

26125792009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435194.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 26125792009 in words is "twenty-six billion, one hundred twenty-five million, seven hundred ninety-two thousand, nine".