38467781361 has 24 divisors (see below), whose sum is σ = 57652795200. Its totient is φ = 25631713872.

The previous prime is 38467781353. The next prime is 38467781371. The reversal of 38467781361 is 16318776483.

38467781361 is a `hidden beast` number, since 384 + 67 + 78 + 136 + 1 = 666.

It is not a de Polignac number, because 38467781361 - 2³ = 38467781353 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38467781298 and 38467781307.

It is not an unprimeable number, because it can be changed into a prime (38467781371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432996 + ... + 514218.

It is an arithmetic number, because the mean of its divisors is an integer number (2402199800).

Almost surely, 2^38467781361 is an apocalyptic number.

It is an amenable number.

38467781361 is a deficient number, since it is larger than the sum of its proper divisors (19185013839).

38467781361 is an equidigital number, since it uses as much as digits as its factorization.

38467781361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83187 (or 83175 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 38467781361 in words is "thirty-eight billion, four hundred sixty-seven million, seven hundred eighty-one thousand, three hundred sixty-one".