8215740819 has 96 divisors (see below), whose sum is σ = 14554176000. Its totient is φ = 4592933280.

The previous prime is 8215740787. The next prime is 8215740833. The reversal of 8215740819 is 9180475128.

8215740819 is a `hidden beast` number, since 82 + 157 + 408 + 19 = 666.

It is not a de Polignac number, because 8215740819 - 2⁵ = 8215740787 is a prime.

It is a super-2 number, since 2×8215740819² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215740899) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5871882 + ... + 5873280.

It is an arithmetic number, because the mean of its divisors is an integer number (151606000).

Almost surely, 2^8215740819 is an apocalyptic number.

8215740819 is a deficient number, since it is larger than the sum of its proper divisors (6338435181).

8215740819 is a wasteful number, since it uses less digits than its factorization.

8215740819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 8215740819 is about 90640.7238441971. The cubic root of 8215740819 is about 2017.8191686975.

The spelling of 8215740819 in words is "eight billion, two hundred fifteen million, seven hundred forty thousand, eight hundred nineteen".