4028742887168 has 18 divisors (see below), whose sum is σ = 8041748497944. Its totient is φ = 2014371443456.

The previous prime is 4028742887161. The next prime is 4028742887179. The reversal of 4028742887168 is 8617882478204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028742887161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7868638196 + ... + 7868638707.

Almost surely, 2^{4028742887168} is an apocalyptic number.

It is an amenable number.

4028742887168 is a deficient number, since it is larger than the sum of its proper divisors (4013005610776).

4028742887168 is an equidigital number, since it uses as much as digits as its factorization.

4028742887168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15737276919 (or 15737276905 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 65.

The spelling of 4028742887168 in words is "four trillion, twenty-eight billion, seven hundred forty-two million, eight hundred eighty-seven thousand, one hundred sixty-eight".