4028742887169 has 32 divisors (see below), whose sum is σ = 7212294964224. Its totient is φ = 1931864719680.

The previous prime is 4028742887161. The next prime is 4028742887179. The reversal of 4028742887169 is 9617882478204.

It is not a de Polignac number, because 4028742887169 - 2³ = 4028742887161 is a prime.

It is a super-2 number, since 2×4028742887169² (a number of 26 digits) contains 22 as substring.

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

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 31 ways as a sum of consecutive naturals, for example, 670783359 + ... + 670789364.

It is an arithmetic number, because the mean of its divisors is an integer number (225384217632).

Almost surely, 2^{4028742887169} is an apocalyptic number.

It is an amenable number.

4028742887169 is a deficient number, since it is larger than the sum of its proper divisors (3183552077055).

4028742887169 is a wasteful number, since it uses less digits than its factorization.

4028742887169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341572757.

The product of its (nonzero) digits is 86704128, while the sum is 66.

The spelling of 4028742887169 in words is "four trillion, twenty-eight billion, seven hundred forty-two million, eight hundred eighty-seven thousand, one hundred sixty-nine".