26982377856 has 448 divisors, whose sum is σ = 93246890400. Its totient is φ = 7614259200.

The previous prime is 26982377833. The next prime is 26982377879. The reversal of 26982377856 is 65877328962.

It is an interprime number because it is at equal distance from previous prime (26982377833) and next prime (26982377879).

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 26982377793 and 26982377802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 65971380 + ... + 65971788.

Almost surely, 2^26982377856 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 26982377856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46623445200).

26982377856 is an abundant number, since it is smaller than the sum of its proper divisors (66264512544).

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

26982377856 is an equidigital number, since it uses as much as digits as its factorization.

26982377856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 522 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 26982377856 in words is "twenty-six billion, nine hundred eighty-two million, three hundred seventy-seven thousand, eight hundred fifty-six".