421313953439 has 4 divisors (see below), whose sum is σ = 421316676456. Its totient is φ = 421311230424.

The previous prime is 421313953433. The next prime is 421313953451. The reversal of 421313953439 is 934359313124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421313953439 - 2⁸ = 421313953183 is a prime.

It is a super-3 number, since 3×421313953439³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421313953393 and 421313953402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421313953433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114484 + ... + 1443849.

It is an arithmetic number, because the mean of its divisors is an integer number (105329169114).

Almost surely, 2^421313953439 is an apocalyptic number.

421313953439 is a deficient number, since it is larger than the sum of its proper divisors (2723017).

421313953439 is a wasteful number, since it uses less digits than its factorization.

421313953439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723016.

The product of its digits is 1049760, while the sum is 47.

The spelling of 421313953439 in words is "four hundred twenty-one billion, three hundred thirteen million, nine hundred fifty-three thousand, four hundred thirty-nine".