12290540782 has 32 divisors (see below), whose sum is σ = 20212293024. Its totient is φ = 5571072000.

The previous prime is 12290540741. The next prime is 12290540789. The reversal of 12290540782 is 28704509221.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290540789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311782 + ... + 348982.

It is an arithmetic number, because the mean of its divisors is an integer number (631634157).

Almost surely, 2^12290540782 is an apocalyptic number.

12290540782 is a deficient number, since it is larger than the sum of its proper divisors (7921752242).

12290540782 is a wasteful number, since it uses less digits than its factorization.

12290540782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37444.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12290540782 in words is "twelve billion, two hundred ninety million, five hundred forty thousand, seven hundred eighty-two".