8540128195 has 8 divisors (see below), whose sum is σ = 10250043840. Its totient is φ = 6830842560.

The previous prime is 8540128193. The next prime is 8540128199. The reversal of 8540128195 is 5918210458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8540128195 - 2¹ = 8540128193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8540128193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127146 + ... + 182335.

It is an arithmetic number, because the mean of its divisors is an integer number (1281255480).

Almost surely, 2^8540128195 is an apocalyptic number.

8540128195 is a deficient number, since it is larger than the sum of its proper divisors (1709915645).

8540128195 is a wasteful number, since it uses less digits than its factorization.

8540128195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315005.

The product of its (nonzero) digits is 115200, while the sum is 43.

The square root of 8540128195 is about 92412.8140194854. The cubic root of 8540128195 is about 2044.0340681685.

The spelling of 8540128195 in words is "eight billion, five hundred forty million, one hundred twenty-eight thousand, one hundred ninety-five".