7816540341 has 4 divisors (see below), whose sum is σ = 10422053792. Its totient is φ = 5211026892.

The previous prime is 7816540297. The next prime is 7816540351. The reversal of 7816540341 is 1430456187.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7816540341 - 2¹⁰ = 7816539317 is a prime.

It is a super-2 number, since 2×7816540341² (a number of 21 digits) contains 22 as substring.

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 7816540341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7816540351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302756721 + ... + 1302756726.

It is an arithmetic number, because the mean of its divisors is an integer number (2605513448).

Almost surely, 2^7816540341 is an apocalyptic number.

It is an amenable number.

7816540341 is a deficient number, since it is larger than the sum of its proper divisors (2605513451).

7816540341 is a wasteful number, since it uses less digits than its factorization.

7816540341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605513450.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 7816540341 is about 88411.2003142136. The cubic root of 7816540341 is about 1984.5933168929.

The spelling of 7816540341 in words is "seven billion, eight hundred sixteen million, five hundred forty thousand, three hundred forty-one".