8120683674538 has 4 divisors (see below), whose sum is σ = 12181025511810. Its totient is φ = 4060341837268.

The previous prime is 8120683674529. The next prime is 8120683674547. The reversal of 8120683674538 is 8354763860218.

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

It is an interprime number because it is at equal distance from previous prime (8120683674529) and next prime (8120683674547).

It can be written as a sum of positive squares in only one way, i.e., 6033620933649 + 2087062740889 = 2456343^2 + 1444667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030170918633 + ... + 2030170918636.

Almost surely, 2^{8120683674538} is an apocalyptic number.

8120683674538 is a deficient number, since it is larger than the sum of its proper divisors (4060341837272).

8120683674538 is a wasteful number, since it uses less digits than its factorization.

8120683674538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060341837271.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 8120683674538 in words is "eight trillion, one hundred twenty billion, six hundred eighty-three million, six hundred seventy-four thousand, five hundred thirty-eight".