38888923085 has 4 divisors (see below), whose sum is σ = 46666707708. Its totient is φ = 31111138464.

The previous prime is 38888923061. The next prime is 38888923103. The reversal of 38888923085 is 58032988883.

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 6284842729 + 32604080356 = 79277^2 + 180566^2 .

It is a cyclic number.

It is not a de Polignac number, because 38888923085 - 2¹² = 38888918989 is a prime.

It is a super-2 number, since 2×38888923085² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888892304 + ... + 3888892313.

It is an arithmetic number, because the mean of its divisors is an integer number (11666676927).

Almost surely, 2^38888923085 is an apocalyptic number.

It is an amenable number.

38888923085 is a deficient number, since it is larger than the sum of its proper divisors (7777784623).

38888923085 is an equidigital number, since it uses as much as digits as its factorization.

38888923085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777784622.

The product of its (nonzero) digits is 26542080, while the sum is 62.

The spelling of 38888923085 in words is "thirty-eight billion, eight hundred eighty-eight million, nine hundred twenty-three thousand, eighty-five".