38743229889 has 135 divisors (see below), whose sum is σ = 71386921827. Its totient is φ = 20237581728.

The previous prime is 38743229827. The next prime is 38743229893. The reversal of 38743229889 is 98892234783.

The square root of 38743229889 is 196833.

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

38743229889 is a `hidden beast` number, since 38 + 7 + 432 + 2 + 98 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5731247025 + 33011982864 = 75705^2 + 181692^2 .

It is not a de Polignac number, because 38743229889 - 2¹⁷ = 38743098817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

Its product of digits (41803776) is a multiple of the sum of its prime divisors (126).

It is not an unprimeable number, because it can be changed into a prime (38743229089) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 376147812 + ... + 376147914.

Almost surely, 2^38743229889 is an apocalyptic number.

38743229889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

38743229889 is the 196833-rd square number.

38743229889 is the 98417-th centered octagonal number.

It is an amenable number.

38743229889 is a deficient number, since it is larger than the sum of its proper divisors (32643691938).

38743229889 is an equidigital number, since it uses as much as digits as its factorization.

38743229889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 126 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 38743229889 in words is "thirty-eight billion, seven hundred forty-three million, two hundred twenty-nine thousand, eight hundred eighty-nine".