38261942885 has 4 divisors (see below), whose sum is σ = 45914331468. Its totient is φ = 30609554304.

The previous prime is 38261942833. The next prime is 38261942893. The reversal of 38261942885 is 58824916283.

It is a happy number.

38261942885 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16363270561 + 21898672324 = 127919^2 + 147982^2 .

It is a cyclic number.

It is not a de Polignac number, because 38261942885 - 2¹² = 38261938789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38261942885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3826194284 + ... + 3826194293.

It is an arithmetic number, because the mean of its divisors is an integer number (11478582867).

Almost surely, 2^38261942885 is an apocalyptic number.

It is an amenable number.

38261942885 is a deficient number, since it is larger than the sum of its proper divisors (7652388583).

38261942885 is an equidigital number, since it uses as much as digits as its factorization.

38261942885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652388582.

The product of its digits is 6635520, while the sum is 56.

The spelling of 38261942885 in words is "thirty-eight billion, two hundred sixty-one million, nine hundred forty-two thousand, eight hundred eighty-five".