38228428685 has 16 divisors (see below), whose sum is σ = 47882375424. Its totient is φ = 29244665472.

The previous prime is 38228428673. The next prime is 38228428703. The reversal of 38228428685 is 58682482283.

It is a cyclic number.

It is not a de Polignac number, because 38228428685 - 2⁸ = 38228428429 is a prime.

It is a super-2 number, since 2×38228428685² (a number of 22 digits) contains 22 as substring.

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 38228428685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370769 + ... + 462521.

It is an arithmetic number, because the mean of its divisors is an integer number (2992648464).

Almost surely, 2^38228428685 is an apocalyptic number.

It is an amenable number.

38228428685 is a deficient number, since it is larger than the sum of its proper divisors (9653946739).

38228428685 is a wasteful number, since it uses less digits than its factorization.

38228428685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95404.

The product of its digits is 11796480, while the sum is 56.

The spelling of 38228428685 in words is "thirty-eight billion, two hundred twenty-eight million, four hundred twenty-eight thousand, six hundred eighty-five".