26363642280 has 192 divisors, whose sum is σ = 85419956160. Its totient is φ = 6504938496.

The previous prime is 26363642251. The next prime is 26363642281. The reversal of 26363642280 is 8224636362.

It is not an unprimeable number, because it can be changed into a prime (26363642281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1855684 + ... + 1869836.

It is an arithmetic number, because the mean of its divisors is an integer number (444895605).

Almost surely, 2^26363642280 is an apocalyptic number.

26363642280 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 26363642280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42709978080).

26363642280 is an abundant number, since it is smaller than the sum of its proper divisors (59056313880).

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

26363642280 is a wasteful number, since it uses less digits than its factorization.

26363642280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14248 (or 14225 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 26363642280 in words is "twenty-six billion, three hundred sixty-three million, six hundred forty-two thousand, two hundred eighty".