26087870916 has 36 divisors (see below), whose sum is σ = 65968238700. Its totient is φ = 8692805568.

The previous prime is 26087870849. The next prime is 26087870917. The reversal of 26087870916 is 61907878062.

It can be written as a sum of positive squares in 2 ways, for example, as 15011150400 + 11076720516 = 122520^2 + 105246^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (26087870917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29511 + ... + 230318.

It is an arithmetic number, because the mean of its divisors is an integer number (1832451075).

Almost surely, 2^26087870916 is an apocalyptic number.

It is an amenable number.

26087870916 is an abundant number, since it is smaller than the sum of its proper divisors (39880367784).

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

26087870916 is a wasteful number, since it uses less digits than its factorization.

26087870916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262628 (or 262623 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 26087870916 in words is "twenty-six billion, eighty-seven million, eight hundred seventy thousand, nine hundred sixteen".