26381140480 has 40 divisors (see below), whose sum is σ = 63252912492. Its totient is φ = 10552455168.

The previous prime is 26381140439. The next prime is 26381140519. The reversal of 26381140480 is 8404118362.

It can be written as a sum of positive squares in 2 ways, for example, as 24340992256 + 2040148224 = 156016^2 + 45168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 5150007 + ... + 5155126.

Almost surely, 2^26381140480 is an apocalyptic number.

26381140480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26381140480 is an abundant number, since it is smaller than the sum of its proper divisors (36871772012).

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

26381140480 is an equidigital number, since it uses as much as digits as its factorization.

26381140480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305156 (or 10305140 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 26381140480 in words is "twenty-six billion, three hundred eighty-one million, one hundred forty thousand, four hundred eighty".