8540195782 has 4 divisors (see below), whose sum is σ = 12810293676. Its totient is φ = 4270097890.

The previous prime is 8540195743. The next prime is 8540195827. The reversal of 8540195782 is 2875910458.

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: 2875910458 = 2 ⋅1437955229.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135048944 + ... + 2135048947.

It is an arithmetic number, because the mean of its divisors is an integer number (3202573419).

Almost surely, 2^8540195782 is an apocalyptic number.

8540195782 is a deficient number, since it is larger than the sum of its proper divisors (4270097894).

8540195782 is a wasteful number, since it uses less digits than its factorization.

8540195782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270097893.

The product of its (nonzero) digits is 806400, while the sum is 49.

The square root of 8540195782 is about 92413.1796985690. The cubic root of 8540195782 is about 2044.0394603501.

The spelling of 8540195782 in words is "eight billion, five hundred forty million, one hundred ninety-five thousand, seven hundred eighty-two".