26510809468 has 96 divisors (see below), whose sum is σ = 56120799168. Its totient is φ = 10795161600.

The previous prime is 26510809417. The next prime is 26510809531. The reversal of 26510809468 is 86490801562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9670578 + ... + 9673318.

It is an arithmetic number, because the mean of its divisors is an integer number (584591658).

Almost surely, 2^26510809468 is an apocalyptic number.

It is an amenable number.

26510809468 is an abundant number, since it is smaller than the sum of its proper divisors (29609989700).

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

26510809468 is a wasteful number, since it uses less digits than its factorization.

26510809468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263 (or 3261 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 26510809468 in words is "twenty-six billion, five hundred ten million, eight hundred nine thousand, four hundred sixty-eight".