7738166443536 has 315 divisors, whose sum is σ = 23052166669119. Its totient is φ = 2515197013056.

The previous prime is 7738166443453. The next prime is 7738166443541. The reversal of 7738166443536 is 6353446618377.

The square root of 7738166443536 is 2781756.

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

7738166443536 is a `hidden beast` number, since 7 + 7 + 3 + 8 + 166 + 4 + 435 + 36 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 12918474565 + ... + 12918475163.

Almost surely, 2^{7738166443536} is an apocalyptic number.

7738166443536 is the 2781756-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7738166443536

7738166443536 is an abundant number, since it is smaller than the sum of its proper divisors (15314000225583).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7738166443536 is an frugal number, since it uses more digits than its factorization.

7738166443536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 647 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 63.

The spelling of 7738166443536 in words is "seven trillion, seven hundred thirty-eight billion, one hundred sixty-six million, four hundred forty-three thousand, five hundred thirty-six".