425711643 has 8 divisors (see below), whose sum is σ = 648703488. Its totient is φ = 243263784.

The previous prime is 425711641. The next prime is 425711647. The reversal of 425711643 is 346117524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425711643 - 2¹ = 425711641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425711641) 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 7 ways as a sum of consecutive naturals, for example, 10135971 + ... + 10136012.

It is an arithmetic number, because the mean of its divisors is an integer number (81087936).

Almost surely, 2^425711643 is an apocalyptic number.

425711643 is a deficient number, since it is larger than the sum of its proper divisors (222991845).

425711643 is a wasteful number, since it uses less digits than its factorization.

425711643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20271993.

The product of its digits is 20160, while the sum is 33.

The square root of 425711643 is about 20632.7807868935. The cubic root of 425711643 is about 752.2667086963.

The spelling of 425711643 in words is "four hundred twenty-five million, seven hundred eleven thousand, six hundred forty-three".