26318447400 has 192 divisors, whose sum is σ = 94205220480. Its totient is φ = 5953536000.

The previous prime is 26318447381. The next prime is 26318447413. The reversal of 26318447400 is 474481362.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375100 + ... + 439700.

It is an arithmetic number, because the mean of its divisors is an integer number (490652190).

Almost surely, 2^26318447400 is an apocalyptic number.

26318447400 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 26318447400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47102610240).

26318447400 is an abundant number, since it is smaller than the sum of its proper divisors (67886773080).

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

26318447400 is a wasteful number, since it uses less digits than its factorization.

26318447400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64724 (or 64715 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 26318447400 in words is "twenty-six billion, three hundred eighteen million, four hundred forty-seven thousand, four hundred".