426389177449 has 4 divisors (see below), whose sum is σ = 433616112720. Its totient is φ = 419162242180.

The previous prime is 426389177429. The next prime is 426389177453. The reversal of 426389177449 is 944771983624.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426389177449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426389177419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613467547 + ... + 3613467664.

It is an arithmetic number, because the mean of its divisors is an integer number (108404028180).

Almost surely, 2^426389177449 is an apocalyptic number.

It is an amenable number.

426389177449 is a deficient number, since it is larger than the sum of its proper divisors (7226935271).

426389177449 is an equidigital number, since it uses as much as digits as its factorization.

426389177449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226935270.

The product of its digits is 73156608, while the sum is 64.

The spelling of 426389177449 in words is "four hundred twenty-six billion, three hundred eighty-nine million, one hundred seventy-seven thousand, four hundred forty-nine".