38714631481681 has 4 divisors (see below), whose sum is σ = 38715763092532. Its totient is φ = 38713499870832.

The previous prime is 38714631481663. The next prime is 38714631481697. The reversal of 38714631481681 is 18618413641783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34477847342656 + 4236784139025 = 5871784^2 + 2058345^2 .

It is a cyclic number.

It is not a de Polignac number, because 38714631481681 - 2¹¹ = 38714631479633 is a prime.

It is a super-2 number, since 2×38714631481681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38714631481651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565754106 + ... + 565822531.

It is an arithmetic number, because the mean of its divisors is an integer number (9678940773133).

Almost surely, 2^{38714631481681} is an apocalyptic number.

It is an amenable number.

38714631481681 is a deficient number, since it is larger than the sum of its proper divisors (1131610851).

38714631481681 is a wasteful number, since it uses less digits than its factorization.

38714631481681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131610850.

The product of its digits is 18579456, while the sum is 61.

The spelling of 38714631481681 in words is "thirty-eight trillion, seven hundred fourteen billion, six hundred thirty-one million, four hundred eighty-one thousand, six hundred eighty-one".