25961935086051 has 4 divisors (see below), whose sum is σ = 34615913448072. Its totient is φ = 17307956724032.

The previous prime is 25961935085987. The next prime is 25961935086053. The reversal of 25961935086051 is 15068053916952.

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

It is a cyclic number.

It is not a de Polignac number, because 25961935086051 - 2⁶ = 25961935085987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25961935086053) 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, 4326989181006 + ... + 4326989181011.

It is an arithmetic number, because the mean of its divisors is an integer number (8653978362018).

Almost surely, 2^{25961935086051} is an apocalyptic number.

25961935086051 is a deficient number, since it is larger than the sum of its proper divisors (8653978362021).

25961935086051 is an equidigital number, since it uses as much as digits as its factorization.

25961935086051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8653978362020.

The product of its (nonzero) digits is 17496000, while the sum is 60.

The spelling of 25961935086051 in words is "twenty-five trillion, nine hundred sixty-one billion, nine hundred thirty-five million, eighty-six thousand, fifty-one".