4145555869 has 48 divisors (see below), whose sum is σ = 5485898880. Its totient is φ = 3096455040.

The previous prime is 4145555863. The next prime is 4145555917. The reversal of 4145555869 is 9685555414.

It is not a de Polignac number, because 4145555869 - 2¹³ = 4145547677 is a prime.

It is a super-2 number, since 2×4145555869² = 34371266926000690322, which contains 22 as substring.

Its product of digits (4320000) is a multiple of the sum of its prime factors (1250).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145555863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5579112 + ... + 5579854.

It is an arithmetic number, because the mean of its divisors is an integer number (114289560).

Almost surely, 2^4145555869 is an apocalyptic number.

4145555869 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4145555869 is a deficient number, since it is larger than the sum of its proper divisors (1340343011).

4145555869 is a wasteful number, since it uses less digits than its factorization.

4145555869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1243 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 52.

The square root of 4145555869 is about 64385.9912480968. The cubic root of 4145555869 is about 1606.4267381941.

The spelling of 4145555869 in words is "four billion, one hundred forty-five million, five hundred fifty-five thousand, eight hundred sixty-nine".