38864501381 has 4 divisors (see below), whose sum is σ = 39089151852. Its totient is φ = 38639850912.

The previous prime is 38864501341. The next prime is 38864501393. The reversal of 38864501381 is 18310546883.

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 15714878881 + 23149622500 = 125359^2 + 152150^2 .

It is a cyclic number.

It is not a de Polignac number, because 38864501381 - 2³⁰ = 37790759557 is a prime.

It is a super-2 number, since 2×38864501381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38864501341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112324976 + ... + 112325321.

It is an arithmetic number, because the mean of its divisors is an integer number (9772287963).

Almost surely, 2^38864501381 is an apocalyptic number.

It is an amenable number.

38864501381 is a deficient number, since it is larger than the sum of its proper divisors (224650471).

38864501381 is a wasteful number, since it uses less digits than its factorization.

38864501381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224650470.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 38864501381 in words is "thirty-eight billion, eight hundred sixty-four million, five hundred one thousand, three hundred eighty-one".