26398773830 has 64 divisors (see below), whose sum is σ = 56159889408. Its totient is φ = 8807986560.

The previous prime is 26398773827. The next prime is 26398773857. The reversal of 26398773830 is 3837789362.

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 31 ways as a sum of consecutive naturals, for example, 183539 + ... + 294081.

It is an arithmetic number, because the mean of its divisors is an integer number (877498272).

Almost surely, 2^26398773830 is an apocalyptic number.

26398773830 is an abundant number, since it is smaller than the sum of its proper divisors (29761115578).

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

26398773830 is a wasteful number, since it uses less digits than its factorization.

26398773830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110741.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 26398773830 in words is "twenty-six billion, three hundred ninety-eight million, seven hundred seventy-three thousand, eight hundred thirty".