4155942489 has 4 divisors (see below), whose sum is σ = 5541256656. Its totient is φ = 2770628324.

The previous prime is 4155942481. The next prime is 4155942529. The reversal of 4155942489 is 9842495514.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4155942489 - 2³ = 4155942481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4155942481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692657079 + ... + 692657084.

It is an arithmetic number, because the mean of its divisors is an integer number (1385314164).

Almost surely, 2^4155942489 is an apocalyptic number.

It is an amenable number.

4155942489 is a deficient number, since it is larger than the sum of its proper divisors (1385314167).

4155942489 is a wasteful number, since it uses less digits than its factorization.

4155942489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385314166.

The product of its digits is 2073600, while the sum is 51.

The square root of 4155942489 is about 64466.5997940019. The cubic root of 4155942489 is about 1607.7672442709.

It can be divided in two parts, 41559 and 42489, that added together give a palindrome (84048).

The spelling of 4155942489 in words is "four billion, one hundred fifty-five million, nine hundred forty-two thousand, four hundred eighty-nine".