25726998011988 has 96 divisors (see below), whose sum is σ = 77094950639616. Its totient is φ = 6490136138112.

The previous prime is 25726998011963. The next prime is 25726998012083. The reversal of 25726998011988 is 88911089962752.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 512138406 + ... + 512188637.

It is an arithmetic number, because the mean of its divisors is an integer number (803072402496).

Almost surely, 2^{25726998011988} is an apocalyptic number.

25726998011988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25726998011988 is an abundant number, since it is smaller than the sum of its proper divisors (51367952627628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25726998011988 is a wasteful number, since it uses less digits than its factorization.

25726998011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024327093 (or 1024327091 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 75.

The spelling of 25726998011988 in words is "twenty-five trillion, seven hundred twenty-six billion, nine hundred ninety-eight million, eleven thousand, nine hundred eighty-eight".