6140067817 has 4 divisors (see below), whose sum is σ = 6612380740. Its totient is φ = 5667754896.

The previous prime is 6140067811. The next prime is 6140067821. The reversal of 6140067817 is 7187600416.

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 355096336 + 5784971481 = 18844^2 + 76059^2 .

It is a cyclic number.

It is not a de Polignac number, because 6140067817 - 2¹¹ = 6140065769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6140067817.

It is not an unprimeable number, because it can be changed into a prime (6140067811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236156442 + ... + 236156467.

It is an arithmetic number, because the mean of its divisors is an integer number (1653095185).

Almost surely, 2^6140067817 is an apocalyptic number.

It is an amenable number.

6140067817 is a deficient number, since it is larger than the sum of its proper divisors (472312923).

6140067817 is a wasteful number, since it uses less digits than its factorization.

6140067817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472312922.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 6140067817 is about 78358.5848328057. The cubic root of 6140067817 is about 1831.1519732856.

The spelling of 6140067817 in words is "six billion, one hundred forty million, sixty-seven thousand, eight hundred seventeen".