12705893480 has 32 divisors (see below), whose sum is σ = 32672298240. Its totient is φ = 4356306240.

The previous prime is 12705893471. The next prime is 12705893507. The reversal of 12705893480 is 8439850721.

It is a happy number.

It is a super-2 number, since 2×12705893480² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22688816 + ... + 22689375.

It is an arithmetic number, because the mean of its divisors is an integer number (1021009320).

Almost surely, 2^12705893480 is an apocalyptic number.

12705893480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12705893480 is an abundant number, since it is smaller than the sum of its proper divisors (19966404760).

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

12705893480 is a wasteful number, since it uses less digits than its factorization.

12705893480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45378209 (or 45378205 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 12705893480 in words is "twelve billion, seven hundred five million, eight hundred ninety-three thousand, four hundred eighty".