38288785645 has 24 divisors (see below), whose sum is σ = 50556223872. Its totient is φ = 27817167840.

The previous prime is 38288785631. The next prime is 38288785657. The reversal of 38288785645 is 54658788283.

It is not a de Polignac number, because 38288785645 - 2⁹ = 38288785133 is a prime.

It is a super-3 number, since 3×38288785645³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552312 + ... + 617758.

It is an arithmetic number, because the mean of its divisors is an integer number (2106509328).

Almost surely, 2^38288785645 is an apocalyptic number.

It is an amenable number.

38288785645 is a deficient number, since it is larger than the sum of its proper divisors (12267438227).

38288785645 is a wasteful number, since it uses less digits than its factorization.

38288785645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66441 (or 66430 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 64.

The spelling of 38288785645 in words is "thirty-eight billion, two hundred eighty-eight million, seven hundred eighty-five thousand, six hundred forty-five".