26438922812 has 24 divisors (see below), whose sum is σ = 46497991680. Its totient is φ = 13153869680.

The previous prime is 26438922803. The next prime is 26438922823. The reversal of 26438922812 is 21822983462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296737 + ... + 1316967.

It is an arithmetic number, because the mean of its divisors is an integer number (1937416320).

Almost surely, 2^26438922812 is an apocalyptic number.

It is an amenable number.

26438922812 is a deficient number, since it is larger than the sum of its proper divisors (20059068868).

26438922812 is a wasteful number, since it uses less digits than its factorization.

26438922812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21841 (or 21839 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The spelling of 26438922812 in words is "twenty-six billion, four hundred thirty-eight million, nine hundred twenty-two thousand, eight hundred twelve".