8149344215 has 4 divisors (see below), whose sum is σ = 9779213064. Its totient is φ = 6519475368.

The previous prime is 8149344211. The next prime is 8149344253. The reversal of 8149344215 is 5124439418.

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

It is a cyclic number.

It is not a de Polignac number, because 8149344215 - 2² = 8149344211 is a prime.

It is a super-2 number, since 2×8149344215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8149344211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814934417 + ... + 814934426.

It is an arithmetic number, because the mean of its divisors is an integer number (2444803266).

Almost surely, 2^8149344215 is an apocalyptic number.

8149344215 is a deficient number, since it is larger than the sum of its proper divisors (1629868849).

8149344215 is a wasteful number, since it uses less digits than its factorization.

8149344215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629868848.

The product of its digits is 138240, while the sum is 41.

The square root of 8149344215 is about 90273.7182960800. The cubic root of 8149344215 is about 2012.3687011803.

The spelling of 8149344215 in words is "eight billion, one hundred forty-nine million, three hundred forty-four thousand, two hundred fifteen".