26138152220 has 12 divisors (see below), whose sum is σ = 54890119704. Its totient is φ = 10455260880.

The previous prime is 26138152217. The next prime is 26138152283. The reversal of 26138152220 is 2225183162.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 653453786 + ... + 653453825.

It is an arithmetic number, because the mean of its divisors is an integer number (4574176642).

Almost surely, 2^26138152220 is an apocalyptic number.

26138152220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26138152220 is an abundant number, since it is smaller than the sum of its proper divisors (28751967484).

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

26138152220 is a wasteful number, since it uses less digits than its factorization.

26138152220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306907620 (or 1306907618 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 26138152220 in words is "twenty-six billion, one hundred thirty-eight million, one hundred fifty-two thousand, two hundred twenty".