38722413827681 has 4 divisors (see below), whose sum is σ = 38722479848112. Its totient is φ = 38722347807252.

The previous prime is 38722413827653. The next prime is 38722413827693. The reversal of 38722413827681 is 18672831422783.

38722413827681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38722413827681 - 2³⁸ = 38447535920737 is a prime.

It is a super-2 number, since 2×38722413827681² (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 (38722413827081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32122475 + ... + 33306128.

It is an arithmetic number, because the mean of its divisors is an integer number (9680619962028).

Almost surely, 2^{38722413827681} is an apocalyptic number.

It is an amenable number.

38722413827681 is a deficient number, since it is larger than the sum of its proper divisors (66020431).

38722413827681 is an equidigital number, since it uses as much as digits as its factorization.

38722413827681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66020430.

The product of its digits is 43352064, while the sum is 62.

The spelling of 38722413827681 in words is "thirty-eight trillion, seven hundred twenty-two billion, four hundred thirteen million, eight hundred twenty-seven thousand, six hundred eighty-one".