425779189 has 16 divisors (see below), whose sum is σ = 505800000. Its totient is φ = 354049920.

The previous prime is 425779187. The next prime is 425779199. The reversal of 425779189 is 981977524.

It is a cyclic number.

It is not a de Polignac number, because 425779189 - 2¹ = 425779187 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 (425779181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29064 + ... + 41185.

It is an arithmetic number, because the mean of its divisors is an integer number (31612500).

Almost surely, 2^425779189 is an apocalyptic number.

It is an amenable number.

425779189 is a deficient number, since it is larger than the sum of its proper divisors (80020811).

425779189 is a wasteful number, since it uses less digits than its factorization.

425779189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70308.

The product of its digits is 1270080, while the sum is 52.

The square root of 425779189 is about 20634.4175832515. The cubic root of 425779189 is about 752.3064929969.

The spelling of 425779189 in words is "four hundred twenty-five million, seven hundred seventy-nine thousand, one hundred eighty-nine".