38861419689 has 27 divisors (see below), whose sum is σ = 58700392023. Its totient is φ = 24772521312.

The previous prime is 38861419661. The next prime is 38861419691. The reversal of 38861419689 is 98691416883.

The square root of 38861419689 is 197133.

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

38861419689 is a `hidden beast` number, since 3 + 8 + 8 + 614 + 1 + 9 + 6 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26180858025 + 12680561664 = 161805^2 + 112608^2 .

It is not a de Polignac number, because 38861419689 - 2⁵ = 38861419657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38861419609) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13600749 + ... + 13603605.

Almost surely, 2^38861419689 is an apocalyptic number.

38861419689 is the 197133-rd square number.

38861419689 is the 98567-th centered octagonal number.

It is an amenable number.

38861419689 is a deficient number, since it is larger than the sum of its proper divisors (19838972334).

38861419689 is an frugal number, since it uses more digits than its factorization.

38861419689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766 (or 2883 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The spelling of 38861419689 in words is "thirty-eight billion, eight hundred sixty-one million, four hundred nineteen thousand, six hundred eighty-nine".