26219990080 has 28 divisors (see below), whose sum is σ = 62436352140. Its totient is φ = 10487995904.

The previous prime is 26219990077. The next prime is 26219990117. The reversal of 26219990080 is 8009991262.

It can be written as a sum of positive squares in 2 ways, for example, as 20536036416 + 5683953664 = 143304^2 + 75392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26219990080.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40968415 + ... + 40969054.

Almost surely, 2^26219990080 is an apocalyptic number.

26219990080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26219990080 is an abundant number, since it is smaller than the sum of its proper divisors (36216362060).

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

26219990080 is an equidigital number, since it uses as much as digits as its factorization.

26219990080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81937486 (or 81937476 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 26219990080 in words is "twenty-six billion, two hundred nineteen million, nine hundred ninety thousand, eighty".