6542114465 has 4 divisors (see below), whose sum is σ = 7850537364. Its totient is φ = 5233691568.

The previous prime is 6542114443. The next prime is 6542114477. The reversal of 6542114465 is 5644112456.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4256127121 + 2285987344 = 65239^2 + 47812^2 .

It is a cyclic number.

It is not a de Polignac number, because 6542114465 - 2⁸ = 6542114209 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 654211442 + ... + 654211451.

It is an arithmetic number, because the mean of its divisors is an integer number (1962634341).

Almost surely, 2^6542114465 is an apocalyptic number.

It is an amenable number.

6542114465 is a deficient number, since it is larger than the sum of its proper divisors (1308422899).

6542114465 is a wasteful number, since it uses less digits than its factorization.

6542114465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308422898.

The product of its digits is 115200, while the sum is 38.

The square root of 6542114465 is about 80883.3386118550. The cubic root of 6542114465 is about 1870.2774870136.

The spelling of 6542114465 in words is "six billion, five hundred forty-two million, one hundred fourteen thousand, four hundred sixty-five".