25726261250568 has 32 divisors (see below), whose sum is σ = 64315793640960. Its totient is φ = 8575401681600.

The previous prime is 25726261250561. The next prime is 25726261250587. The reversal of 25726261250568 is 86505216262752.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25726261250561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14115993 + ... + 15833943.

It is an arithmetic number, because the mean of its divisors is an integer number (2009868551280).

Almost surely, 2^{25726261250568} is an apocalyptic number.

It is an amenable number.

25726261250568 is an abundant number, since it is smaller than the sum of its proper divisors (38589532390392).

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

25726261250568 is a wasteful number, since it uses less digits than its factorization.

25726261250568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341917 (or 2341913 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 25726261250568 in words is "twenty-five trillion, seven hundred twenty-six billion, two hundred sixty-one million, two hundred fifty thousand, five hundred sixty-eight".