1421186145686 has 8 divisors (see below), whose sum is σ = 2134209984240. Its totient is φ = 709782817608.

The previous prime is 1421186145683. The next prime is 1421186145703. The reversal of 1421186145686 is 6865416811241.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421186145683) 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, 405125426 + ... + 405128933.

It is an arithmetic number, because the mean of its divisors is an integer number (266776248030).

Almost surely, 2^{1421186145686} is an apocalyptic number.

1421186145686 is a deficient number, since it is larger than the sum of its proper divisors (713023838554).

1421186145686 is an equidigital number, since it uses as much as digits as its factorization.

1421186145686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810255238.

The product of its digits is 2211840, while the sum is 53.

The spelling of 1421186145686 in words is "one trillion, four hundred twenty-one billion, one hundred eighty-six million, one hundred forty-five thousand, six hundred eighty-six".