38049906647 has 2 divisors, whose sum is σ = 38049906648. Its totient is φ = 38049906646.

The previous prime is 38049906637. The next prime is 38049906679. The reversal of 38049906647 is 74660994083.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38049906647 is a prime.

It is a super-3 number, since 3×38049906647³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38049906592 and 38049906601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38049906637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19024953323 + 19024953324.

It is an arithmetic number, because the mean of its divisors is an integer number (19024953324).

Almost surely, 2^38049906647 is an apocalyptic number.

38049906647 is a deficient number, since it is larger than the sum of its proper divisors (1).

38049906647 is an equidigital number, since it uses as much as digits as its factorization.

38049906647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 38049906647 in words is "thirty-eight billion, forty-nine million, nine hundred six thousand, six hundred forty-seven".