38816486361 has 21 divisors (see below), whose sum is σ = 58206083151. Its totient is φ = 25874111232.

The previous prime is 38816486353. The next prime is 38816486447. The reversal of 38816486361 is 16368461883.

The square root of 38816486361 is 197019.

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

It can be written as a sum of positive squares in only one way, i.e., 13198563225 + 25617923136 = 114885^2 + 160056^2 .

It is not a de Polignac number, because 38816486361 - 2³ = 38816486353 is a prime.

It is a super-2 number, since 2×38816486361² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38816486298 and 38816486307.

It is not an unprimeable number, because it can be changed into a prime (38816486321) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 5315865 + ... + 5323161.

Almost surely, 2^38816486361 is an apocalyptic number.

38816486361 is the 197019-th square number.

38816486361 is the 98510-th centered octagonal number.

It is an amenable number.

38816486361 is a deficient number, since it is larger than the sum of its proper divisors (19389596790).

38816486361 is an frugal number, since it uses more digits than its factorization.

38816486361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612 (or 7300 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 38816486361 in words is "thirty-eight billion, eight hundred sixteen million, four hundred eighty-six thousand, three hundred sixty-one".