12388357982 has 256 divisors, whose sum is σ = 27211161600. Its totient is φ = 4075868160.

The previous prime is 12388357951. The next prime is 12388357987. The reversal of 12388357982 is 28975388321.

It is a super-2 number, since 2×12388357982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388357987) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 156814619 + ... + 156814697.

It is an arithmetic number, because the mean of its divisors is an integer number (106293600).

Almost surely, 2^12388357982 is an apocalyptic number.

12388357982 is an abundant number, since it is smaller than the sum of its proper divisors (14822803618).

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

12388357982 is a wasteful number, since it uses less digits than its factorization.

12388357982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its digits is 5806080, while the sum is 56.

The spelling of 12388357982 in words is "twelve billion, three hundred eighty-eight million, three hundred fifty-seven thousand, nine hundred eighty-two".