8481857407 has 4 divisors (see below), whose sum is σ = 8850633840. Its totient is φ = 8113080976.

The previous prime is 8481857387. The next prime is 8481857437. The reversal of 8481857407 is 7047581848.

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 8481857407 - 2¹⁵ = 8481824639 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 (8481857437) 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, 184388182 + ... + 184388227.

It is an arithmetic number, because the mean of its divisors is an integer number (2212658460).

Almost surely, 2^8481857407 is an apocalyptic number.

8481857407 is a deficient number, since it is larger than the sum of its proper divisors (368776433).

8481857407 is a wasteful number, since it uses less digits than its factorization.

8481857407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368776432.

The product of its (nonzero) digits is 2007040, while the sum is 52.

The square root of 8481857407 is about 92096.9999891419. Note that the first 4 decimals coincide. The cubic root of 8481857407 is about 2039.3745204529.

The spelling of 8481857407 in words is "eight billion, four hundred eighty-one million, eight hundred fifty-seven thousand, four hundred seven".