82387663465 has 8 divisors (see below), whose sum is σ = 104680796040. Its totient is φ = 62033064192.

The previous prime is 82387663451. The next prime is 82387663469. The reversal of 82387663465 is 56436678328.

It can be written as a sum of positive squares in 4 ways, for example, as 1586189929 + 80801473536 = 39827^2 + 284256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-82387663465 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82387663469) 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 7 ways as a sum of consecutive naturals, for example, 484633230 + ... + 484633399.

It is an arithmetic number, because the mean of its divisors is an integer number (13085099505).

Almost surely, 2^82387663465 is an apocalyptic number.

82387663465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82387663465 is a deficient number, since it is larger than the sum of its proper divisors (22293132575).

82387663465 is a wasteful number, since it uses less digits than its factorization.

82387663465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969266651.

The product of its digits is 34836480, while the sum is 58.

The spelling of 82387663465 in words is "eighty-two billion, three hundred eighty-seven million, six hundred sixty-three thousand, four hundred sixty-five".