8481415857 has 4 divisors (see below), whose sum is σ = 11308554480. Its totient is φ = 5654277236.

The previous prime is 8481415837. The next prime is 8481415907. The reversal of 8481415857 is 7585141848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8481415857 - 2⁸ = 8481415601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8481415837) 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, 1413569307 + ... + 1413569312.

It is an arithmetic number, because the mean of its divisors is an integer number (2827138620).

Almost surely, 2^8481415857 is an apocalyptic number.

It is an amenable number.

8481415857 is a deficient number, since it is larger than the sum of its proper divisors (2827138623).

8481415857 is a wasteful number, since it uses less digits than its factorization.

8481415857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827138622.

The product of its digits is 1433600, while the sum is 51.

The square root of 8481415857 is about 92094.6027571649. The cubic root of 8481415857 is about 2039.3391311349.

The spelling of 8481415857 in words is "eight billion, four hundred eighty-one million, four hundred fifteen thousand, eight hundred fifty-seven".