25703117998 has 16 divisors (see below), whose sum is σ = 38925675360. Its totient is φ = 12727997856.

The previous prime is 25703117981. The next prime is 25703118013. The reversal of 25703117998 is 89971130752.

It is a super-2 number, since 2×25703117998² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 488815 + ... + 538837.

It is an arithmetic number, because the mean of its divisors is an integer number (2432854710).

Almost surely, 2^25703117998 is an apocalyptic number.

25703117998 is a deficient number, since it is larger than the sum of its proper divisors (13222557362).

25703117998 is a wasteful number, since it uses less digits than its factorization.

25703117998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52491.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 25703117998 in words is "twenty-five billion, seven hundred three million, one hundred seventeen thousand, nine hundred ninety-eight".