8535440819 has 2 divisors, whose sum is σ = 8535440820. Its totient is φ = 8535440818.

The previous prime is 8535440779. The next prime is 8535440839. The reversal of 8535440819 is 9180445358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8535440819 is a prime.

It is a super-2 number, since 2×8535440819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8535440839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4267720409 + 4267720410.

It is an arithmetic number, because the mean of its divisors is an integer number (4267720410).

Almost surely, 2^8535440819 is an apocalyptic number.

8535440819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8535440819 is an equidigital number, since it uses as much as digits as its factorization.

8535440819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 8535440819 is about 92387.4494669054. The cubic root of 8535440819 is about 2043.6600335924.

The spelling of 8535440819 in words is "eight billion, five hundred thirty-five million, four hundred forty thousand, eight hundred nineteen".