12040209782 has 8 divisors (see below), whose sum is σ = 18060940656. Its totient is φ = 6019896232.

The previous prime is 12040209781. The next prime is 12040209787. The reversal of 12040209782 is 28790204021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040209781) 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, 17873 + ... + 156204.

It is an arithmetic number, because the mean of its divisors is an integer number (2257617582).

Almost surely, 2^12040209782 is an apocalyptic number.

12040209782 is a deficient number, since it is larger than the sum of its proper divisors (6020730874).

12040209782 is a wasteful number, since it uses less digits than its factorization.

12040209782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208662.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 12040209782 in words is "twelve billion, forty million, two hundred nine thousand, seven hundred eighty-two".