26186934516 has 12 divisors (see below), whose sum is σ = 61102847232. Its totient is φ = 8728978168.

The previous prime is 26186934503. The next prime is 26186934551. The reversal of 26186934516 is 61543968162.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091122260 + ... + 1091122283.

It is an arithmetic number, because the mean of its divisors is an integer number (5091903936).

Almost surely, 2^26186934516 is an apocalyptic number.

It is an amenable number.

26186934516 is an abundant number, since it is smaller than the sum of its proper divisors (34915912716).

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

26186934516 is a wasteful number, since it uses less digits than its factorization.

26186934516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182244550 (or 2182244548 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The spelling of 26186934516 in words is "twenty-six billion, one hundred eighty-six million, nine hundred thirty-four thousand, five hundred sixteen".