26451191424 has 256 divisors, whose sum is σ = 81996641280. Its totient is φ = 7399268352.

The previous prime is 26451191387. The next prime is 26451191447. The reversal of 26451191424 is 42419115462.

It is a super-2 number, since 2×26451191424² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31984099 + ... + 31984925.

It is an arithmetic number, because the mean of its divisors is an integer number (320299380).

Almost surely, 2^26451191424 is an apocalyptic number.

26451191424 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 26451191424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40998320640).

26451191424 is an abundant number, since it is smaller than the sum of its proper divisors (55545449856).

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

26451191424 is a wasteful number, since it uses less digits than its factorization.

26451191424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1075 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The spelling of 26451191424 in words is "twenty-six billion, four hundred fifty-one million, one hundred ninety-one thousand, four hundred twenty-four".