26163252730 has 16 divisors (see below), whose sum is σ = 47510616744. Its totient is φ = 10372687360.

The previous prime is 26163252701. The next prime is 26163252749. The reversal of 26163252730 is 3725236162.

It can be written as a sum of positive squares in 4 ways, for example, as 11549585961 + 14613666769 = 107469^2 + 120887^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26163252730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11575531 + ... + 11577790.

Almost surely, 2^26163252730 is an apocalyptic number.

26163252730 is a deficient number, since it is larger than the sum of its proper divisors (21347364014).

26163252730 is a wasteful number, since it uses less digits than its factorization.

26163252730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23153441.

The product of its (nonzero) digits is 90720, while the sum is 37.

Adding to 26163252730 its reverse (3725236162), we get a palindrome (29888488892).

The spelling of 26163252730 in words is "twenty-six billion, one hundred sixty-three million, two hundred fifty-two thousand, seven hundred thirty".