25913847945 has 8 divisors (see below), whose sum is σ = 41462156736. Its totient is φ = 13820718896.

The previous prime is 25913847913. The next prime is 25913847977. The reversal of 25913847945 is 54974831952.

It is an interprime number because it is at equal distance from previous prime (25913847913) and next prime (25913847977).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25913847945 - 2⁵ = 25913847913 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863794917 + ... + 863794946.

It is an arithmetic number, because the mean of its divisors is an integer number (5182769592).

Almost surely, 2^25913847945 is an apocalyptic number.

It is an amenable number.

25913847945 is a deficient number, since it is larger than the sum of its proper divisors (15548308791).

25913847945 is a wasteful number, since it uses less digits than its factorization.

25913847945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727589871.

The product of its digits is 10886400, while the sum is 57.

The spelling of 25913847945 in words is "twenty-five billion, nine hundred thirteen million, eight hundred forty-seven thousand, nine hundred forty-five".