25745920907 has 8 divisors (see below), whose sum is σ = 29796364800. Its totient is φ = 21788590824.

The previous prime is 25745920883. The next prime is 25745920909. The reversal of 25745920907 is 70902954752.

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

It is not a de Polignac number, because 25745920907 - 2⁶ = 25745920843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25745920909) 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, 23277857 + ... + 23278962.

It is an arithmetic number, because the mean of its divisors is an integer number (3724545600).

Almost surely, 2^25745920907 is an apocalyptic number.

25745920907 is a deficient number, since it is larger than the sum of its proper divisors (4050443893).

25745920907 is an equidigital number, since it uses as much as digits as its factorization.

25745920907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46556905.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 25745920907 in words is "twenty-five billion, seven hundred forty-five million, nine hundred twenty thousand, nine hundred seven".