26121726630 has 48 divisors (see below), whose sum is σ = 67949893440. Its totient is φ = 6962367744.

The previous prime is 26121726577. The next prime is 26121726641. The reversal of 26121726630 is 3662712162.

26121726630 is a `hidden beast` number, since 2 + 6 + 1 + 2 + 17 + 2 + 6 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115326 + ... + 256014.

It is an arithmetic number, because the mean of its divisors is an integer number (1415622780).

Almost surely, 2^26121726630 is an apocalyptic number.

26121726630 is an abundant number, since it is smaller than the sum of its proper divisors (41828166810).

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

26121726630 is a wasteful number, since it uses less digits than its factorization.

26121726630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142765 (or 142762 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 26121726630 in words is "twenty-six billion, one hundred twenty-one million, seven hundred twenty-six thousand, six hundred thirty".