12994619140 has 12 divisors (see below), whose sum is σ = 27288700236. Its totient is φ = 5197847648.

The previous prime is 12994619087. The next prime is 12994619147. The reversal of 12994619140 is 4191649921.

It can be written as a sum of positive squares in 2 ways, for example, as 6174502084 + 6820117056 = 78578^2 + 82584^2 .

It is not an unprimeable number, because it can be changed into a prime (12994619147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324865459 + ... + 324865498.

It is an arithmetic number, because the mean of its divisors is an integer number (2274058353).

Almost surely, 2^12994619140 is an apocalyptic number.

12994619140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12994619140 is an abundant number, since it is smaller than the sum of its proper divisors (14294081096).

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

12994619140 is a wasteful number, since it uses less digits than its factorization.

12994619140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649730966 (or 649730964 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 12994619140 in words is "twelve billion, nine hundred ninety-four million, six hundred nineteen thousand, one hundred forty".