38211137681 has 8 divisors (see below), whose sum is σ = 38457746784. Its totient is φ = 37965215680.

The previous prime is 38211137651. The next prime is 38211137683. The reversal of 38211137681 is 18673111283.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38211137681 is a prime.

It is a super-2 number, since 2×38211137681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38211137683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59960 + ... + 282873.

It is an arithmetic number, because the mean of its divisors is an integer number (4807218348).

Almost surely, 2^38211137681 is an apocalyptic number.

It is an amenable number.

38211137681 is a deficient number, since it is larger than the sum of its proper divisors (246609103).

38211137681 is a wasteful number, since it uses less digits than its factorization.

38211137681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343551.

The product of its digits is 48384, while the sum is 41.

The spelling of 38211137681 in words is "thirty-eight billion, two hundred eleven million, one hundred thirty-seven thousand, six hundred eighty-one".