9876543212 has 6 divisors (see below), whose sum is σ = 17283950628. Its totient is φ = 4938271604.

The previous prime is 9876543211. The next prime is 9876543217. The reversal of 9876543212 is 2123456789.

9876543212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×9876543212² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (9876543211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1234567898 + ... + 1234567905.

It is an arithmetic number, because the mean of its divisors is an integer number (2880658438).

Almost surely, 2^9876543212 is an apocalyptic number.

It is an amenable number.

9876543212 is a deficient number, since it is larger than the sum of its proper divisors (7407407416).

9876543212 is a wasteful number, since it uses less digits than its factorization.

9876543212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469135807 (or 2469135805 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 9876543212 is about 99380.7990106741. The cubic root of 9876543212 is about 2145.5319659441.

The spelling of 9876543212 in words is "nine billion, eight hundred seventy-six million, five hundred forty-three thousand, two hundred twelve".