5438173989766 has 16 divisors (see below), whose sum is σ = 9322664035104. Its totient is φ = 2330625982464.

The previous prime is 5438173989719. The next prime is 5438173989817. The reversal of 5438173989766 is 6679893718345.

It is a junction number, because it is equal to n+sod(n) for n = 5438173989692 and 5438173989701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84316 + ... + 3299008.

It is an arithmetic number, because the mean of its divisors is an integer number (582666502194).

Almost surely, 2^{5438173989766} is an apocalyptic number.

5438173989766 is a deficient number, since it is larger than the sum of its proper divisors (3884490045338).

5438173989766 is a wasteful number, since it uses less digits than its factorization.

5438173989766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335535.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 5438173989766 in words is "five trillion, four hundred thirty-eight billion, one hundred seventy-three million, nine hundred eighty-nine thousand, seven hundred sixty-six".