26885131782 has 16 divisors (see below), whose sum is σ = 53771992560. Its totient is φ = 8961422432.

The previous prime is 26885131769. The next prime is 26885131799. The reversal of 26885131782 is 28713158862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223144 + ... + 321812.

It is an arithmetic number, because the mean of its divisors is an integer number (3360749535).

Almost surely, 2^26885131782 is an apocalyptic number.

26885131782 is an abundant number, since it is smaller than the sum of its proper divisors (26886860778).

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

26885131782 is a wasteful number, since it uses less digits than its factorization.

26885131782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144087.

The product of its digits is 1290240, while the sum is 51.

The spelling of 26885131782 in words is "twenty-six billion, eight hundred eighty-five million, one hundred thirty-one thousand, seven hundred eighty-two".