26087870864 has 40 divisors (see below), whose sum is σ = 55387621632. Its totient is φ = 11804929920.

The previous prime is 26087870849. The next prime is 26087870917. The reversal of 26087870864 is 46807878062.

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, 293099 + ... + 371594.

Almost surely, 2^26087870864 is an apocalyptic number.

It is an amenable number.

26087870864 is an abundant number, since it is smaller than the sum of its proper divisors (29299750768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26087870864 is a wasteful number, since it uses less digits than its factorization.

26087870864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664935 (or 664929 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 26087870864 in words is "twenty-six billion, eighty-seven million, eight hundred seventy thousand, eight hundred sixty-four".