82190449715 has 48 divisors (see below), whose sum is σ = 111344442048. Its totient is φ = 58164480000.

The previous prime is 82190449709. The next prime is 82190449727. The reversal of 82190449715 is 51794409128.

It is a happy number.

It is not a de Polignac number, because 82190449715 - 2²⁰ = 82189401139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9942674 + ... + 9950936.

It is an arithmetic number, because the mean of its divisors is an integer number (2319675876).

Almost surely, 2^82190449715 is an apocalyptic number.

82190449715 is a deficient number, since it is larger than the sum of its proper divisors (29153992333).

82190449715 is a wasteful number, since it uses less digits than its factorization.

82190449715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732 (or 8721 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 82190449715 in words is "eighty-two billion, one hundred ninety million, four hundred forty-nine thousand, seven hundred fifteen".