12923621982 has 64 divisors (see below), whose sum is σ = 29023488000. Its totient is φ = 4262453280.

The previous prime is 12923621957. The next prime is 12923621983. The reversal of 12923621982 is 28912632921.

12923621982 is a `hidden beast` number, since 12 + 9 + 2 + 3 + 621 + 9 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923621983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2177503 + ... + 2183429.

It is an arithmetic number, because the mean of its divisors is an integer number (453492000).

Almost surely, 2^12923621982 is an apocalyptic number.

12923621982 is an abundant number, since it is smaller than the sum of its proper divisors (16099866018).

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

12923621982 is a wasteful number, since it uses less digits than its factorization.

12923621982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358 (or 6352 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The spelling of 12923621982 in words is "twelve billion, nine hundred twenty-three million, six hundred twenty-one thousand, nine hundred eighty-two".