254424679689 has 4 divisors (see below), whose sum is σ = 339232906256. Its totient is φ = 169616453124.

The previous prime is 254424679687. The next prime is 254424679697. The reversal of 254424679689 is 986976424452.

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 254424679689 - 2¹ = 254424679687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (254424679687) 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, 42404113279 + ... + 42404113284.

It is an arithmetic number, because the mean of its divisors is an integer number (84808226564).

Almost surely, 2^254424679689 is an apocalyptic number.

It is an amenable number.

254424679689 is a deficient number, since it is larger than the sum of its proper divisors (84808226567).

254424679689 is an equidigital number, since it uses as much as digits as its factorization.

254424679689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84808226566.

The product of its digits is 209018880, while the sum is 66.

The spelling of 254424679689 in words is "two hundred fifty-four billion, four hundred twenty-four million, six hundred seventy-nine thousand, six hundred eighty-nine".