8152488857 has 4 divisors (see below), whose sum is σ = 8164974180. Its totient is φ = 8140003536.

The previous prime is 8152488853. The next prime is 8152488863. The reversal of 8152488857 is 7588842518.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7588842518 = 2 ⋅3794421259.

It can be written as a sum of positive squares in 2 ways, for example, as 4353492361 + 3798996496 = 65981^2 + 61636^2 .

It is a cyclic number.

It is not a de Polignac number, because 8152488857 - 2² = 8152488853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8152488853) 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, 6241682 + ... + 6242987.

It is an arithmetic number, because the mean of its divisors is an integer number (2041243545).

Almost surely, 2^8152488857 is an apocalyptic number.

It is an amenable number.

8152488857 is a deficient number, since it is larger than the sum of its proper divisors (12485323).

8152488857 is a wasteful number, since it uses less digits than its factorization.

8152488857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12485322.

The product of its digits is 5734400, while the sum is 56.

The square root of 8152488857 is about 90291.1338781389. The cubic root of 8152488857 is about 2012.6275099539.

The spelling of 8152488857 in words is "eight billion, one hundred fifty-two million, four hundred eighty-eight thousand, eight hundred fifty-seven".