1421626957399 has 48 divisors (see below), whose sum is σ = 1656097341696. Its totient is φ = 1216859402880.

The previous prime is 1421626957357. The next prime is 1421626957411. The reversal of 1421626957399 is 9937596261241.

It is not a de Polignac number, because 1421626957399 - 2¹⁵ = 1421626924631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421626957399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421626957099) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 461116512 + ... + 461119594.

It is an arithmetic number, because the mean of its divisors is an integer number (34502027952).

Almost surely, 2^{1421626957399} is an apocalyptic number.

1421626957399 is a deficient number, since it is larger than the sum of its proper divisors (234470384297).

1421626957399 is a wasteful number, since it uses less digits than its factorization.

1421626957399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668 (or 5657 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 64.

The spelling of 1421626957399 in words is "one trillion, four hundred twenty-one billion, six hundred twenty-six million, nine hundred fifty-seven thousand, three hundred ninety-nine".