38867451811 has 4 divisors (see below), whose sum is σ = 40207708800. Its totient is φ = 37527194824.

The previous prime is 38867451757. The next prime is 38867451851. The reversal of 38867451811 is 11815476883.

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

It is a cyclic number.

It is not a de Polignac number, because 38867451811 - 2⁷ = 38867451683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38867451851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670128451 + ... + 670128508.

It is an arithmetic number, because the mean of its divisors is an integer number (10051927200).

Almost surely, 2^38867451811 is an apocalyptic number.

38867451811 is a deficient number, since it is larger than the sum of its proper divisors (1340256989).

38867451811 is a wasteful number, since it uses less digits than its factorization.

38867451811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340256988.

The product of its digits is 1290240, while the sum is 52.

The spelling of 38867451811 in words is "thirty-eight billion, eight hundred sixty-seven million, four hundred fifty-one thousand, eight hundred eleven".