25735972963 has 4 divisors (see below), whose sum is σ = 25736480568. Its totient is φ = 25735465360.

The previous prime is 25735972939. The next prime is 25735972993. The reversal of 25735972963 is 36927953752.

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 25735972963 - 2⁵ = 25735972931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25735972898 and 25735972907.

It is not an unprimeable number, because it can be changed into a prime (25735972993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168106 + ... + 282367.

It is an arithmetic number, because the mean of its divisors is an integer number (6434120142).

Almost surely, 2^25735972963 is an apocalyptic number.

25735972963 is a deficient number, since it is larger than the sum of its proper divisors (507605).

25735972963 is an equidigital number, since it uses as much as digits as its factorization.

25735972963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507604.

The product of its digits is 21432600, while the sum is 58.

The spelling of 25735972963 in words is "twenty-five billion, seven hundred thirty-five million, nine hundred seventy-two thousand, nine hundred sixty-three".