82663128180313 has 4 divisors (see below), whose sum is σ = 82663742960820. Its totient is φ = 82662513399808.

The previous prime is 82663128180257. The next prime is 82663128180329. The reversal of 82663128180313 is 31308182136628.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36761581775689 + 45901546404624 = 6063133^2 + 6775068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82663128180313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82663128180013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307188520 + ... + 307457497.

It is an arithmetic number, because the mean of its divisors is an integer number (20665935740205).

Almost surely, 2^{82663128180313} is an apocalyptic number.

It is an amenable number.

82663128180313 is a deficient number, since it is larger than the sum of its proper divisors (614780507).

82663128180313 is a wasteful number, since it uses less digits than its factorization.

82663128180313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614780506.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 82663128180313 in words is "eighty-two trillion, six hundred sixty-three billion, one hundred twenty-eight million, one hundred eighty thousand, three hundred thirteen".