12147582940 has 24 divisors (see below), whose sum is σ = 26619052320. Its totient is φ = 4647770688.

The previous prime is 12147582929. The next prime is 12147583037. The reversal of 12147582940 is 4928574121.

It is a congruent number.

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, 13203435 + ... + 13204354.

It is an arithmetic number, because the mean of its divisors is an integer number (1109127180).

Almost surely, 2^12147582940 is an apocalyptic number.

12147582940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12147582940 is an abundant number, since it is smaller than the sum of its proper divisors (14471469380).

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

12147582940 is a wasteful number, since it uses less digits than its factorization.

12147582940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26407821 (or 26407819 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 12147582940 in words is "twelve billion, one hundred forty-seven million, five hundred eighty-two thousand, nine hundred forty".