26113800081600 has 2520 divisors, whose sum is σ = 121215781630944. Its totient is φ = 5397663744000.

The previous prime is 26113800081547. The next prime is 26113800081637. The reversal of 26113800081600 is 618000831162.

26113800081600 is a `hidden beast` number, since 2 + 6 + 11 + 38 + 0 + 0 + 0 + 8 + 1 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (2520).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 25576689090 + ... + 25576690110.

Almost surely, 2^{26113800081600} is an apocalyptic number.

26113800081600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26113800081600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60607890815472).

26113800081600 is an abundant number, since it is smaller than the sum of its proper divisors (95101981549344).

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

26113800081600 is a wasteful number, since it uses less digits than its factorization.

26113800081600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 26113800081600 in words is "twenty-six trillion, one hundred thirteen billion, eight hundred million, eighty-one thousand, six hundred".