26215387080 has 32 divisors (see below), whose sum is σ = 78646161600. Its totient is φ = 6990769856.

The previous prime is 26215387069. The next prime is 26215387087. The reversal of 26215387080 is 8078351262.

It is not an unprimeable number, because it can be changed into a prime (26215387087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109230660 + ... + 109230899.

It is an arithmetic number, because the mean of its divisors is an integer number (2457692550).

Almost surely, 2^26215387080 is an apocalyptic number.

26215387080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26215387080 is an abundant number, since it is smaller than the sum of its proper divisors (52430774520).

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

26215387080 is a wasteful number, since it uses less digits than its factorization.

26215387080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218461573 (or 218461569 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 26215387080 in words is "twenty-six billion, two hundred fifteen million, three hundred eighty-seven thousand, eighty".