25787545345 has 32 divisors (see below), whose sum is σ = 32467564800. Its totient is φ = 19642487040.

The previous prime is 25787545339. The next prime is 25787545363. The reversal of 25787545345 is 54354578752.

It is not a de Polignac number, because 25787545345 - 2³ = 25787545337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2239974 + ... + 2251456.

It is an arithmetic number, because the mean of its divisors is an integer number (1014611400).

Almost surely, 2^25787545345 is an apocalyptic number.

It is an amenable number.

25787545345 is a deficient number, since it is larger than the sum of its proper divisors (6680019455).

25787545345 is a wasteful number, since it uses less digits than its factorization.

25787545345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11785.

The product of its digits is 23520000, while the sum is 55.

The spelling of 25787545345 in words is "twenty-five billion, seven hundred eighty-seven million, five hundred forty-five thousand, three hundred forty-five".