421379383449 has 4 divisors (see below), whose sum is σ = 561839177936. Its totient is φ = 280919588964.

The previous prime is 421379383429. The next prime is 421379383463. The reversal of 421379383449 is 944383973124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 421379383449 - 2⁹ = 421379382937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421379383429) 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, 70229897239 + ... + 70229897244.

It is an arithmetic number, because the mean of its divisors is an integer number (140459794484).

Almost surely, 2^421379383449 is an apocalyptic number.

It is an amenable number.

421379383449 is a deficient number, since it is larger than the sum of its proper divisors (140459794487).

421379383449 is a wasteful number, since it uses less digits than its factorization.

421379383449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140459794486.

The product of its digits is 15676416, while the sum is 57.

The spelling of 421379383449 in words is "four hundred twenty-one billion, three hundred seventy-nine million, three hundred eighty-three thousand, four hundred forty-nine".