38111864773 has 4 divisors (see below), whose sum is σ = 38122347340. Its totient is φ = 38101382208.

The previous prime is 38111864771. The next prime is 38111864789. The reversal of 38111864773 is 37746811183.

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 2490209604 + 35621655169 = 49902^2 + 188737^2 .

It is a cyclic number.

It is not a de Polignac number, because 38111864773 - 2¹ = 38111864771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38111864771) 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, 5235828 + ... + 5243101.

It is an arithmetic number, because the mean of its divisors is an integer number (9530586835).

Almost surely, 2^38111864773 is an apocalyptic number.

It is an amenable number.

38111864773 is a deficient number, since it is larger than the sum of its proper divisors (10482567).

38111864773 is a wasteful number, since it uses less digits than its factorization.

38111864773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482566.

The product of its digits is 677376, while the sum is 49.

The spelling of 38111864773 in words is "thirty-eight billion, one hundred eleven million, eight hundred sixty-four thousand, seven hundred seventy-three".