8421860351 has 4 divisors (see below), whose sum is σ = 8523328632. Its totient is φ = 8320392072.

The previous prime is 8421860311. The next prime is 8421860353. The reversal of 8421860351 is 1530681248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8421860351 - 2⁶ = 8421860287 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 (8421860353) 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, 50734016 + ... + 50734181.

It is an arithmetic number, because the mean of its divisors is an integer number (2130832158).

Almost surely, 2^8421860351 is an apocalyptic number.

8421860351 is a deficient number, since it is larger than the sum of its proper divisors (101468281).

8421860351 is a wasteful number, since it uses less digits than its factorization.

8421860351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101468280.

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

The square root of 8421860351 is about 91770.6944018623. The cubic root of 8421860351 is about 2034.5545814641.

The spelling of 8421860351 in words is "eight billion, four hundred twenty-one million, eight hundred sixty thousand, three hundred fifty-one".