425168813 has 8 divisors (see below), whose sum is σ = 450746880. Its totient is φ = 400332240.

The previous prime is 425168791. The next prime is 425168839. The reversal of 425168813 is 318861524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425168813 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 (425168213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184193 + ... + 186486.

It is an arithmetic number, because the mean of its divisors is an integer number (56343360).

Almost surely, 2^425168813 is an apocalyptic number.

It is an amenable number.

425168813 is a deficient number, since it is larger than the sum of its proper divisors (25578067).

425168813 is a wasteful number, since it uses less digits than its factorization.

425168813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370747.

The product of its digits is 46080, while the sum is 38.

The square root of 425168813 is about 20619.6220382431. The cubic root of 425168813 is about 751.9468312765.

The spelling of 425168813 in words is "four hundred twenty-five million, one hundred sixty-eight thousand, eight hundred thirteen".