18833464780516 has 9 divisors (see below), whose sum is σ = 32958578555049. Its totient is φ = 9416728050504.

The previous prime is 18833464780513. The next prime is 18833464780541. The reversal of 18833464780516 is 61508746433881.

The square root of 18833464780516 is 4339754.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16191851688100 + 2641613092416 = 4023910^2 + 1625304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18833464780511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7594570 + ... + 9764446.

Almost surely, 2^{18833464780516} is an apocalyptic number.

18833464780516 is the 4339754-th square number.

It is an amenable number.

18833464780516 is a deficient number, since it is larger than the sum of its proper divisors (14125113774533).

18833464780516 is an frugal number, since it uses more digits than its factorization.

18833464780516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339758 (or 2169879 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 18833464780516 in words is "eighteen trillion, eight hundred thirty-three billion, four hundred sixty-four million, seven hundred eighty thousand, five hundred sixteen".