1421234663727 has 8 divisors (see below), whose sum is σ = 1895050788400. Its totient is φ = 947454157440.

The previous prime is 1421234663707. The next prime is 1421234663759. The reversal of 1421234663727 is 7273664321241.

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

It is not a de Polignac number, because 1421234663727 - 2⁷ = 1421234663599 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 (1421234663707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8811352 + ... + 8971197.

It is an arithmetic number, because the mean of its divisors is an integer number (236881348550).

Almost surely, 2^{1421234663727} is an apocalyptic number.

1421234663727 is a deficient number, since it is larger than the sum of its proper divisors (473816124673).

1421234663727 is a wasteful number, since it uses less digits than its factorization.

1421234663727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17809193.

The product of its digits is 2032128, while the sum is 48.

Adding to 1421234663727 its reverse (7273664321241), we get a palindrome (8694898984968).

The spelling of 1421234663727 in words is "one trillion, four hundred twenty-one billion, two hundred thirty-four million, six hundred sixty-three thousand, seven hundred twenty-seven".