425719446109 has 4 divisors (see below), whose sum is σ = 428331222016. Its totient is φ = 423107670204.

The previous prime is 425719446083. The next prime is 425719446199. The reversal of 425719446109 is 901644917524.

It is a happy number.

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 not a de Polignac number, because 425719446109 - 2¹¹ = 425719444061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425719446199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305887709 + ... + 1305888034.

It is an arithmetic number, because the mean of its divisors is an integer number (107082805504).

Almost surely, 2^425719446109 is an apocalyptic number.

It is an amenable number.

425719446109 is a deficient number, since it is larger than the sum of its proper divisors (2611775907).

425719446109 is a wasteful number, since it uses less digits than its factorization.

425719446109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611775906.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 425719446109 in words is "four hundred twenty-five billion, seven hundred nineteen million, four hundred forty-six thousand, one hundred nine".