38771185216 has 63 divisors (see below), whose sum is σ = 77927523723. Its totient is φ = 19139068800.

The previous prime is 38771185157. The next prime is 38771185217. The reversal of 38771185216 is 61258117783.

The square root of 38771185216 is 196904.

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

It is a Duffinian number.

Its product of digits (564480) is a multiple of the sum of its prime factors (640).

It is a self number, because there is not a number n which added to its sum of digits gives 38771185216.

It is not an unprimeable number, because it can be changed into a prime (38771185217) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 237859951 + ... + 237860113.

It is an arithmetic number, because the mean of its divisors is an integer number (1236944821).

Almost surely, 2^38771185216 is an apocalyptic number.

38771185216 is the 196904-th square number.

It is an amenable number.

38771185216 is an abundant number, since it is smaller than the sum of its proper divisors (39156338507).

38771185216 is an frugal number, since it uses more digits than its factorization.

38771185216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 316 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

Multiplying 38771185216 by its sum of digits (49), we get a square (1899788075584 = 1378328²).

The spelling of 38771185216 in words is "thirty-eight billion, seven hundred seventy-one million, one hundred eighty-five thousand, two hundred sixteen".