26490930240 has 112 divisors (see below), whose sum is σ = 84380100480. Its totient is φ = 7041454080.

The previous prime is 26490930239. The next prime is 26490930241. The reversal of 26490930240 is 4203909462.

It is an interprime number because it is at equal distance from previous prime (26490930239) and next prime (26490930241).

It is not an unprimeable number, because it can be changed into a prime (26490930241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254196 + ... + 342924.

Almost surely, 2^26490930240 is an apocalyptic number.

26490930240 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 26490930240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42190050240).

26490930240 is an abundant number, since it is smaller than the sum of its proper divisors (57889170240).

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

26490930240 is a wasteful number, since it uses less digits than its factorization.

26490930240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89060 (or 89050 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 26490930240 in words is "twenty-six billion, four hundred ninety million, nine hundred thirty thousand, two hundred forty".