12040409976 has 64 divisors (see below), whose sum is σ = 35240244480. Its totient is φ = 3356209920.

The previous prime is 12040409971. The next prime is 12040409977. The reversal of 12040409976 is 67990404021.

12040409976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040409971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867126 + ... + 880901.

It is an arithmetic number, because the mean of its divisors is an integer number (550628820).

Almost surely, 2^12040409976 is an apocalyptic number.

It is an amenable number.

12040409976 is an abundant number, since it is smaller than the sum of its proper divisors (23199834504).

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

12040409976 is a wasteful number, since it uses less digits than its factorization.

12040409976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748084 (or 1748080 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 12040409976 in words is "twelve billion, forty million, four hundred nine thousand, nine hundred seventy-six".