4155369891 has 16 divisors (see below), whose sum is σ = 5923367424. Its totient is φ = 2581974144.

The previous prime is 4155369871. The next prime is 4155369913. The reversal of 4155369891 is 1989635514.

It is not a de Polignac number, because 4155369891 - 2¹⁴ = 4155353507 is a prime.

It is a super-3 number, since 3×4155369891³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (4155369811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390271 + ... + 400776.

It is an arithmetic number, because the mean of its divisors is an integer number (370210464).

Almost surely, 2^4155369891 is an apocalyptic number.

4155369891 is a deficient number, since it is larger than the sum of its proper divisors (1767997533).

4155369891 is a wasteful number, since it uses less digits than its factorization.

4155369891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791170.

The product of its digits is 1166400, while the sum is 51.

The square root of 4155369891 is about 64462.1585971180. The cubic root of 4155369891 is about 1607.6934024894.

The spelling of 4155369891 in words is "four billion, one hundred fifty-five million, three hundred sixty-nine thousand, eight hundred ninety-one".