26046397940 has 24 divisors (see below), whose sum is σ = 54924406152. Its totient is φ = 10375326720.

The previous prime is 26046397939. The next prime is 26046397981. The reversal of 26046397940 is 4979364062.

It can be written as a sum of positive squares in 4 ways, for example, as 1091245156 + 24955152784 = 33034^2 + 157972^2 .

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 7 ways as a sum of consecutive naturals, for example, 2697089 + ... + 2706728.

It is an arithmetic number, because the mean of its divisors is an integer number (2288516923).

Almost surely, 2^26046397940 is an apocalyptic number.

26046397940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26046397940 is an abundant number, since it is smaller than the sum of its proper divisors (28878008212).

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

26046397940 is a wasteful number, since it uses less digits than its factorization.

26046397940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404067 (or 5404065 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 26046397940 in words is "twenty-six billion, forty-six million, three hundred ninety-seven thousand, nine hundred forty".