8517451420 has 12 divisors (see below), whose sum is σ = 17886648024. Its totient is φ = 3406980560.

The previous prime is 8517451417. The next prime is 8517451421. The reversal of 8517451420 is 241547158.

It is a self number, because there is not a number n which added to its sum of digits gives 8517451420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8517451421) 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, 212936266 + ... + 212936305.

It is an arithmetic number, because the mean of its divisors is an integer number (1490554002).

Almost surely, 2^8517451420 is an apocalyptic number.

It is an amenable number.

8517451420 is an abundant number, since it is smaller than the sum of its proper divisors (9369196604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8517451420 is a wasteful number, since it uses less digits than its factorization.

8517451420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425872580 (or 425872578 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 8517451420 is about 92290.0396575925. The cubic root of 8517451420 is about 2042.2232761530.

Adding to 8517451420 its reverse (241547158), we get a palindrome (8758998578).

The spelling of 8517451420 in words is "eight billion, five hundred seventeen million, four hundred fifty-one thousand, four hundred twenty".