26491007732 has 12 divisors (see below), whose sum is σ = 52982015520. Its totient is φ = 11353289016.

The previous prime is 26491007717. The next prime is 26491007737. The reversal of 26491007732 is 23770019462.

26491007732 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 26491007732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26491007737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473053682 + ... + 473053737.

It is an arithmetic number, because the mean of its divisors is an integer number (4415167960).

Almost surely, 2^26491007732 is an apocalyptic number.

It is an amenable number.

26491007732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26491007732 is a wasteful number, since it uses less digits than its factorization.

26491007732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946107430 (or 946107428 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 26491007732 in words is "twenty-six billion, four hundred ninety-one million, seven thousand, seven hundred thirty-two".