25926920863 has 4 divisors (see below), whose sum is σ = 25991576928. Its totient is φ = 25862264800.

The previous prime is 25926920861. The next prime is 25926920879. The reversal of 25926920863 is 36802962952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25926920863 - 2¹ = 25926920861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25926920863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25926920861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32327431 + ... + 32328232.

It is an arithmetic number, because the mean of its divisors is an integer number (6497894232).

Almost surely, 2^25926920863 is an apocalyptic number.

25926920863 is a deficient number, since it is larger than the sum of its proper divisors (64656065).

25926920863 is an equidigital number, since it uses as much as digits as its factorization.

25926920863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64656064.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 25926920863 in words is "twenty-five billion, nine hundred twenty-six million, nine hundred twenty thousand, eight hundred sixty-three".