25671717267 has 16 divisors (see below), whose sum is σ = 39125747712. Its totient is φ = 14666950080.

The previous prime is 25671717259. The next prime is 25671717271. The reversal of 25671717267 is 76271717652.

It is not a de Polignac number, because 25671717267 - 2³ = 25671717259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25671717257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16063 + ... + 227159.

It is an arithmetic number, because the mean of its divisors is an integer number (2445359232).

Almost surely, 2^25671717267 is an apocalyptic number.

25671717267 is a deficient number, since it is larger than the sum of its proper divisors (13454030445).

25671717267 is a wasteful number, since it uses less digits than its factorization.

25671717267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216898.

The product of its digits is 1728720, while the sum is 51.

The spelling of 25671717267 in words is "twenty-five billion, six hundred seventy-one million, seven hundred seventeen thousand, two hundred sixty-seven".