26816349611680 has 48 divisors (see below), whose sum is σ = 63467366969160. Its totient is φ = 10707282107392.

The previous prime is 26816349611659. The next prime is 26816349611687. The reversal of 26816349611680 is 8611694361862.

It can be written as a sum of positive squares in 4 ways, for example, as 6813164921616 + 20003184690064 = 2610204^2 + 4472492^2 .

It is not an unprimeable number, because it can be changed into a prime (26816349611687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150361675 + ... + 150539914.

Almost surely, 2^{26816349611680} is an apocalyptic number.

26816349611680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26816349611680 is an abundant number, since it is smaller than the sum of its proper divisors (36651017357480).

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

26816349611680 is a wasteful number, since it uses less digits than its factorization.

26816349611680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300902161 (or 300902153 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 26816349611680 in words is "twenty-six trillion, eight hundred sixteen billion, three hundred forty-nine million, six hundred eleven thousand, six hundred eighty".