25987679707 has 8 divisors (see below), whose sum is σ = 28400558400. Its totient is φ = 23583194760.

The previous prime is 25987679671. The next prime is 25987679713. The reversal of 25987679707 is 70797678952.

It is a happy number.

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 25987679707 - 2²³ = 25979291099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25987679797) 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 7 ways as a sum of consecutive naturals, for example, 2091957 + ... + 2104342.

It is an arithmetic number, because the mean of its divisors is an integer number (3550069800).

Almost surely, 2^25987679707 is an apocalyptic number.

25987679707 is a deficient number, since it is larger than the sum of its proper divisors (2412878693).

25987679707 is a wasteful number, since it uses less digits than its factorization.

25987679707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196873.

The product of its (nonzero) digits is 93350880, while the sum is 67.

The spelling of 25987679707 in words is "twenty-five billion, nine hundred eighty-seven million, six hundred seventy-nine thousand, seven hundred seven".