25198383912 has 64 divisors (see below), whose sum is σ = 68500548480. Its totient is φ = 7678063872.

The previous prime is 25198383871. The next prime is 25198383913. The reversal of 25198383912 is 21938389152.

It is not an unprimeable number, because it can be changed into a prime (25198383913) 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 15 ways as a sum of consecutive naturals, for example, 359923 + ... + 424194.

It is an arithmetic number, because the mean of its divisors is an integer number (1070321070).

Almost surely, 2^25198383912 is an apocalyptic number.

It is an amenable number.

25198383912 is an abundant number, since it is smaller than the sum of its proper divisors (43302164568).

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

25198383912 is a wasteful number, since it uses less digits than its factorization.

25198383912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784242 (or 784238 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The spelling of 25198383912 in words is "twenty-five billion, one hundred ninety-eight million, three hundred eighty-three thousand, nine hundred twelve".