12146691084 has 96 divisors (see below), whose sum is σ = 31701922560. Its totient is φ = 3587942400.

The previous prime is 12146691071. The next prime is 12146691101. The reversal of 12146691084 is 48019664121.

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, 3227764 + ... + 3231524.

It is an arithmetic number, because the mean of its divisors is an integer number (330228360).

Almost surely, 2^12146691084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12146691084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15850961280).

12146691084 is an abundant number, since it is smaller than the sum of its proper divisors (19555231476).

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

12146691084 is a wasteful number, since it uses less digits than its factorization.

12146691084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12146691084 in words is "twelve billion, one hundred forty-six million, six hundred ninety-one thousand, eighty-four".