1421428407707 has 32 divisors (see below), whose sum is σ = 1805996528640. Its totient is φ = 1086474280320.

The previous prime is 1421428407703. The next prime is 1421428407769. The reversal of 1421428407707 is 7077048241241.

It is not a de Polignac number, because 1421428407707 - 2² = 1421428407703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421428407703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20259794 + ... + 20329832.

It is an arithmetic number, because the mean of its divisors is an integer number (56437391520).

Almost surely, 2^{1421428407707} is an apocalyptic number.

1421428407707 is a deficient number, since it is larger than the sum of its proper divisors (384568120933).

1421428407707 is a wasteful number, since it uses less digits than its factorization.

1421428407707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75083.

The product of its (nonzero) digits is 702464, while the sum is 47.

The spelling of 1421428407707 in words is "one trillion, four hundred twenty-one billion, four hundred twenty-eight million, four hundred seven thousand, seven hundred seven".