26894891460 has 96 divisors (see below), whose sum is σ = 76860330624. Its totient is φ = 7024896000.

The previous prime is 26894891459. The next prime is 26894891477. The reversal of 26894891460 is 6419849862.

It is a self number, because there is not a number n which added to its sum of digits gives 26894891460.

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, 866815 + ... + 897305.

It is an arithmetic number, because the mean of its divisors is an integer number (800628444).

Almost surely, 2^26894891460 is an apocalyptic number.

26894891460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26894891460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38430165312).

26894891460 is an abundant number, since it is smaller than the sum of its proper divisors (49965439164).

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

26894891460 is a wasteful number, since it uses less digits than its factorization.

26894891460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30805 (or 30803 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 26894891460 in words is "twenty-six billion, eight hundred ninety-four million, eight hundred ninety-one thousand, four hundred sixty".