26326998400 has 96 divisors (see below), whose sum is σ = 65549018880. Its totient is φ = 10447718400.

The previous prime is 26326998377. The next prime is 26326998469. The reversal of 26326998400 is 489962362.

It is a happy number.

It is a super-2 number, since 2×26326998400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 374010 + ... + 438790.

It is an arithmetic number, because the mean of its divisors is an integer number (682802280).

Almost surely, 2^26326998400 is an apocalyptic number.

26326998400 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 26326998400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32774509440).

26326998400 is an abundant number, since it is smaller than the sum of its proper divisors (39222020480).

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

26326998400 is a wasteful number, since it uses less digits than its factorization.

26326998400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64932 (or 64915 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 26326998400 in words is "twenty-six billion, three hundred twenty-six million, nine hundred ninety-eight thousand, four hundred".