26831680804 has 24 divisors (see below), whose sum is σ = 47619055008. Its totient is φ = 13227426240.

The previous prime is 26831680801. The next prime is 26831680807. The reversal of 26831680804 is 40808613862.

It is an interprime number because it is at equal distance from previous prime (26831680801) and next prime (26831680807).

It is not an unprimeable number, because it can be changed into a prime (26831680801) by changing a digit.

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, 58249 + ... + 238864.

It is an arithmetic number, because the mean of its divisors is an integer number (1984127292).

Almost surely, 2^26831680804 is an apocalyptic number.

It is an amenable number.

26831680804 is a deficient number, since it is larger than the sum of its proper divisors (20787374204).

26831680804 is a wasteful number, since it uses less digits than its factorization.

26831680804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297435 (or 297433 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 26831680804 in words is "twenty-six billion, eight hundred thirty-one million, six hundred eighty thousand, eight hundred four".