12898109847 has 16 divisors (see below), whose sum is σ = 19834580480. Its totient is φ = 7302729312.

The previous prime is 12898109821. The next prime is 12898109857. The reversal of 12898109847 is 74890189821.

It is not a de Polignac number, because 12898109847 - 2¹⁴ = 12898093463 is a prime.

It is a super-2 number, since 2×12898109847² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12898109857) 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, 2815123 + ... + 2819700.

It is an arithmetic number, because the mean of its divisors is an integer number (1239661280).

Almost surely, 2^12898109847 is an apocalyptic number.

12898109847 is a deficient number, since it is larger than the sum of its proper divisors (6936470633).

12898109847 is a wasteful number, since it uses less digits than its factorization.

12898109847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634942.

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 12898109847 in words is "twelve billion, eight hundred ninety-eight million, one hundred nine thousand, eight hundred forty-seven".