8257188545 has 16 divisors (see below), whose sum is σ = 10043834112. Its totient is φ = 6516168960.

The previous prime is 8257188539. The next prime is 8257188547. The reversal of 8257188545 is 5458817528.

It is not a de Polignac number, because 8257188545 - 2⁴ = 8257188529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8257188547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84584 + ... + 153846.

It is an arithmetic number, because the mean of its divisors is an integer number (627739632).

Almost surely, 2^8257188545 is an apocalyptic number.

It is an amenable number.

8257188545 is a deficient number, since it is larger than the sum of its proper divisors (1786645567).

8257188545 is a wasteful number, since it uses less digits than its factorization.

8257188545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69592.

The product of its digits is 3584000, while the sum is 53.

The square root of 8257188545 is about 90869.0736444474. The cubic root of 8257188545 is about 2021.2067214662.

The spelling of 8257188545 in words is "eight billion, two hundred fifty-seven million, one hundred eighty-eight thousand, five hundred forty-five".