26491109132 has 12 divisors (see below), whose sum is σ = 46637043600. Its totient is φ = 13166239536.

The previous prime is 26491109101. The next prime is 26491109147. The reversal of 26491109132 is 23190119462.

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, 19828007 + ... + 19829342.

It is an arithmetic number, because the mean of its divisors is an integer number (3886420300).

Almost surely, 2^26491109132 is an apocalyptic number.

It is an amenable number.

26491109132 is a deficient number, since it is larger than the sum of its proper divisors (20145934468).

26491109132 is a wasteful number, since it uses less digits than its factorization.

26491109132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39657520 (or 39657518 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 26491109132 in words is "twenty-six billion, four hundred ninety-one million, one hundred nine thousand, one hundred thirty-two".