26280631424 has 64 divisors (see below), whose sum is σ = 54139968000. Its totient is φ = 12694056960.

The previous prime is 26280631423. The next prime is 26280631441. The reversal of 26280631424 is 42413608262.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (26280631423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371304 + ... + 2382360.

It is an arithmetic number, because the mean of its divisors is an integer number (845937000).

Almost surely, 2^26280631424 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 26280631424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27069984000).

26280631424 is an abundant number, since it is smaller than the sum of its proper divisors (27859336576).

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

26280631424 is a wasteful number, since it uses less digits than its factorization.

26280631424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701 (or 11689 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 26280631424 in words is "twenty-six billion, two hundred eighty million, six hundred thirty-one thousand, four hundred twenty-four".