38985029823 has 4 divisors (see below), whose sum is σ = 51980039768. Its totient is φ = 25990019880.

The previous prime is 38985029821. The next prime is 38985029849. The reversal of 38985029823 is 32892058983.

38985029823 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 is not a de Polignac number, because 38985029823 - 2¹ = 38985029821 is a prime.

It is a super-2 number, since 2×38985029823² (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 (38985029821) 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, 6497504968 + ... + 6497504973.

It is an arithmetic number, because the mean of its divisors is an integer number (12995009942).

Almost surely, 2^38985029823 is an apocalyptic number.

38985029823 is a deficient number, since it is larger than the sum of its proper divisors (12995009945).

38985029823 is a wasteful number, since it uses less digits than its factorization.

38985029823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995009944.

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 38985029823 in words is "thirty-eight billion, nine hundred eighty-five million, twenty-nine thousand, eight hundred twenty-three".