26456886984 has 128 divisors (see below), whose sum is σ = 76084416000. Its totient is φ = 7582118400.

The previous prime is 26456886949. The next prime is 26456887073. The reversal of 26456886984 is 48968865462.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3100644 + ... + 3109164.

It is an arithmetic number, because the mean of its divisors is an integer number (594409500).

Almost surely, 2^26456886984 is an apocalyptic number.

26456886984 is a gapful number since it is divisible by the number (24) 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 26456886984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38042208000).

26456886984 is an abundant number, since it is smaller than the sum of its proper divisors (49627529016).

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

26456886984 is a wasteful number, since it uses less digits than its factorization.

26456886984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179 (or 9175 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 66.

The spelling of 26456886984 in words is "twenty-six billion, four hundred fifty-six million, eight hundred eighty-six thousand, nine hundred eighty-four".