12642783701 has 4 divisors (see below), whose sum is σ = 12643401504. Its totient is φ = 12642165900.

The previous prime is 12642783691. The next prime is 12642783707. The reversal of 12642783701 is 10738724621.

12642783701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12642783701 - 2¹⁴ = 12642767317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642783707) 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 3 ways as a sum of consecutive naturals, for example, 277115 + ... + 319496.

It is an arithmetic number, because the mean of its divisors is an integer number (3160850376).

Almost surely, 2^12642783701 is an apocalyptic number.

It is an amenable number.

12642783701 is a deficient number, since it is larger than the sum of its proper divisors (617803).

12642783701 is an equidigital number, since it uses as much as digits as its factorization.

12642783701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617802.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 12642783701 in words is "twelve billion, six hundred forty-two million, seven hundred eighty-three thousand, seven hundred one".