38431444485 has 64 divisors (see below), whose sum is σ = 75669811200. Its totient is φ = 16254907392.

The previous prime is 38431444481. The next prime is 38431444507. The reversal of 38431444485 is 58444413483.

It is not a de Polignac number, because 38431444485 - 2² = 38431444481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38431444481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77145 + ... + 287774.

It is an arithmetic number, because the mean of its divisors is an integer number (1182340800).

Almost surely, 2^38431444485 is an apocalyptic number.

38431444485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38431444485 is a deficient number, since it is larger than the sum of its proper divisors (37238366715).

38431444485 is a wasteful number, since it uses less digits than its factorization.

38431444485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365010.

The product of its digits is 2949120, while the sum is 48.

The spelling of 38431444485 in words is "thirty-eight billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred eighty-five".