25726998011963 has 2 divisors, whose sum is σ = 25726998011964. Its totient is φ = 25726998011962.

The previous prime is 25726998011951. The next prime is 25726998012083. The reversal of 25726998011963 is 36911089962752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25726998011963 - 2⁴ = 25726998011947 is a prime.

It is a super-2 number, since 2×25726998011963² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25726998011893 and 25726998011902.

It is not a weakly prime, because it can be changed into another prime (25726998011933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863499005981 + 12863499005982.

It is an arithmetic number, because the mean of its divisors is an integer number (12863499005982).

Almost surely, 2^{25726998011963} is an apocalyptic number.

25726998011963 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726998011963 is an equidigital number, since it uses as much as digits as its factorization.

25726998011963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88179840, while the sum is 68.

The spelling of 25726998011963 in words is "twenty-five trillion, seven hundred twenty-six billion, nine hundred ninety-eight million, eleven thousand, nine hundred sixty-three".