26308972725 has 192 divisors, whose sum is σ = 54263193600. Its totient is φ = 10980023040.

The previous prime is 26308972691. The next prime is 26308972733. The reversal of 26308972725 is 52727980362.

It is not a de Polignac number, because 26308972725 - 2⁶ = 26308972661 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 35600406 + ... + 35601144.

It is an arithmetic number, because the mean of its divisors is an integer number (282620800).

Almost surely, 2^26308972725 is an apocalyptic number.

26308972725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26308972725 is an abundant number, since it is smaller than the sum of its proper divisors (27954220875).

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

26308972725 is a wasteful number, since it uses less digits than its factorization.

26308972725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 26308972725 in words is "twenty-six billion, three hundred eight million, nine hundred seventy-two thousand, seven hundred twenty-five".