12864699460 has 48 divisors (see below), whose sum is σ = 27812917440. Its totient is φ = 4994732160.

The previous prime is 12864699443. The next prime is 12864699467. The reversal of 12864699460 is 6499646821.

It is a super-2 number, since 2×12864699460² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12864699467) 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, 289315 + ... + 330805.

It is an arithmetic number, because the mean of its divisors is an integer number (579435780).

Almost surely, 2^12864699460 is an apocalyptic number.

12864699460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12864699460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13906458720).

12864699460 is an abundant number, since it is smaller than the sum of its proper divisors (14948217980).

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

12864699460 is a wasteful number, since it uses less digits than its factorization.

12864699460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41956 (or 41954 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 12864699460 in words is "twelve billion, eight hundred sixty-four million, six hundred ninety-nine thousand, four hundred sixty".