12890925198 has 32 divisors (see below), whose sum is σ = 29634314400. Its totient is φ = 4148803008.

The previous prime is 12890925197. The next prime is 12890925209. The reversal of 12890925198 is 89152909821.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890925197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4114311 + ... + 4117442.

It is an arithmetic number, because the mean of its divisors is an integer number (926072325).

Almost surely, 2^12890925198 is an apocalyptic number.

12890925198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12890925198 is an abundant number, since it is smaller than the sum of its proper divisors (16743389202).

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

12890925198 is a wasteful number, since it uses less digits than its factorization.

12890925198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231793 (or 8231787 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 12890925198 in words is "twelve billion, eight hundred ninety million, nine hundred twenty-five thousand, one hundred ninety-eight".