26791385722 has 16 divisors (see below), whose sum is σ = 43701054120. Its totient is φ = 12266961408.

The previous prime is 26791385707. The next prime is 26791385729. The reversal of 26791385722 is 22758319762.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24714669681 + 2076716041 = 157209^2 + 45571^2 .

It is a super-2 number, since 2×26791385722² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26791385722.

It is not an unprimeable number, because it can be changed into a prime (26791385729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10647147 + ... + 10649662.

Almost surely, 2^26791385722 is an apocalyptic number.

26791385722 is a deficient number, since it is larger than the sum of its proper divisors (16909668398).

26791385722 is a wasteful number, since it uses less digits than its factorization.

26791385722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21296865.

The product of its digits is 2540160, while the sum is 52.

The spelling of 26791385722 in words is "twenty-six billion, seven hundred ninety-one million, three hundred eighty-five thousand, seven hundred twenty-two".