26057384930 has 32 divisors (see below), whose sum is σ = 47279015280. Its totient is φ = 10339568640.

The previous prime is 26057384923. The next prime is 26057384953. The reversal of 26057384930 is 3948375062.

It is a happy number.

It is a Cunningham number, because it is equal to 161423²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 15306390961 + 10750993969 = 123719^2 + 103687^2 .

It is a super-2 number, since 2×26057384930² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198420 + ... + 2210240.

Almost surely, 2^26057384930 is an apocalyptic number.

26057384930 is a deficient number, since it is larger than the sum of its proper divisors (21221630350).

26057384930 is a wasteful number, since it uses less digits than its factorization.

26057384930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13574.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 26057384930 in words is "twenty-six billion, fifty-seven million, three hundred eighty-four thousand, nine hundred thirty".