12670820712 has 128 divisors (see below), whose sum is σ = 39635251200. Its totient is φ = 3715761600.

The previous prime is 12670820693. The next prime is 12670820759. The reversal of 12670820712 is 21702807621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12358 + ... + 159669.

It is an arithmetic number, because the mean of its divisors is an integer number (309650400).

Almost surely, 2^12670820712 is an apocalyptic number.

12670820712 is a gapful number since it is divisible by the number (12) 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 12670820712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19817625600).

12670820712 is an abundant number, since it is smaller than the sum of its proper divisors (26964430488).

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

12670820712 is a wasteful number, since it uses less digits than its factorization.

12670820712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172084 (or 172074 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 12670820712 in words is "twelve billion, six hundred seventy million, eight hundred twenty thousand, seven hundred twelve".