12297051890 has 32 divisors (see below), whose sum is σ = 23112020736. Its totient is φ = 4701913920.

The previous prime is 12297051887. The next prime is 12297051919. The reversal of 12297051890 is 9815079221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356339 + ... + 389321.

It is an arithmetic number, because the mean of its divisors is an integer number (722250648).

Almost surely, 2^12297051890 is an apocalyptic number.

12297051890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12297051890 is a deficient number, since it is larger than the sum of its proper divisors (10814968846).

12297051890 is a wasteful number, since it uses less digits than its factorization.

12297051890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34634.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 12297051890 in words is "twelve billion, two hundred ninety-seven million, fifty-one thousand, eight hundred ninety".