26930123136 has 352 divisors, whose sum is σ = 92151349200. Its totient is φ = 7679204352.

The previous prime is 26930123123. The next prime is 26930123153. The reversal of 26930123136 is 63132103962.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26930123136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 52907650 + ... + 52908158.

Almost surely, 2^26930123136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26930123136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46075674600).

26930123136 is an abundant number, since it is smaller than the sum of its proper divisors (65221226064).

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

26930123136 is an frugal number, since it uses more digits than its factorization.

26930123136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 26930123136 in words is "twenty-six billion, nine hundred thirty million, one hundred twenty-three thousand, one hundred thirty-six".