26699899738992 has 160 divisors (see below), whose sum is σ = 70342389798912. Its totient is φ = 8725398135552.

The previous prime is 26699899738961. The next prime is 26699899738997. The reversal of 26699899738992 is 29983799899662.

It is a self number, because there is not a number n which added to its sum of digits gives 26699899738992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26699899738997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277592893 + ... + 277689059.

Almost surely, 2^{26699899738992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26699899738992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35171194899456).

26699899738992 is an abundant number, since it is smaller than the sum of its proper divisors (43642490059920).

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

26699899738992 is a wasteful number, since it uses less digits than its factorization.

26699899738992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96795 (or 96789 counting only the distinct ones).

The product of its digits is 102852965376, while the sum is 96.

The spelling of 26699899738992 in words is "twenty-six trillion, six hundred ninety-nine billion, eight hundred ninety-nine million, seven hundred thirty-eight thousand, nine hundred ninety-two".