26092781015616 has 672 divisors, whose sum is σ = 89172480633600. Its totient is φ = 7137158676480.

The previous prime is 26092781015597. The next prime is 26092781015683. The reversal of 26092781015616 is 61651018729062.

It is a happy number.

26092781015616 is a `hidden beast` number, since 2 + 6 + 0 + 9 + 2 + 7 + 8 + 1 + 0 + 15 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×26092781015616² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8021142246 + ... + 8021145498.

It is an arithmetic number, because the mean of its divisors is an integer number (132697143800).

Almost surely, 2^{26092781015616} 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 26092781015616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44586240316800).

26092781015616 is an abundant number, since it is smaller than the sum of its proper divisors (63079699617984).

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

26092781015616 is a wasteful number, since it uses less digits than its factorization.

26092781015616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 26092781015616 in words is "twenty-six trillion, ninety-two billion, seven hundred eighty-one million, fifteen thousand, six hundred sixteen".