19676645756084 has 24 divisors (see below), whose sum is σ = 34509957821640. Its totient is φ = 9816673775616.

The previous prime is 19676645756081. The next prime is 19676645756147. The reversal of 19676645756084 is 48065754667691.

It can be written as a sum of positive squares in 4 ways, for example, as 8190918072484 + 11485727683600 = 2861978^2 + 3389060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19676645756081) 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, 2937482 + ... + 6926910.

It is an arithmetic number, because the mean of its divisors is an integer number (1437914909235).

Almost surely, 2^{19676645756084} is an apocalyptic number.

It is an amenable number.

19676645756084 is a deficient number, since it is larger than the sum of its proper divisors (14833312065556).

19676645756084 is a wasteful number, since it uses less digits than its factorization.

19676645756084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992147 (or 3992145 counting only the distinct ones).

The product of its (nonzero) digits is 1828915200, while the sum is 74.

The spelling of 19676645756084 in words is "nineteen trillion, six hundred seventy-six billion, six hundred forty-five million, seven hundred fifty-six thousand, eighty-four".