2145573889269 has 8 divisors (see below), whose sum is σ = 2861401919712. Its totient is φ = 1430064225840.

The previous prime is 2145573889253. The next prime is 2145573889273. The reversal of 2145573889269 is 9629883755412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2145573889269 - 2⁴ = 2145573889253 is a prime.

It is a super-2 number, since 2×2145573889269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145573889169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79576027 + ... + 79602984.

It is an arithmetic number, because the mean of its divisors is an integer number (357675239964).

Almost surely, 2^{2145573889269} is an apocalyptic number.

It is an amenable number.

2145573889269 is a deficient number, since it is larger than the sum of its proper divisors (715828030443).

2145573889269 is a wasteful number, since it uses less digits than its factorization.

2145573889269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159183507.

The product of its digits is 261273600, while the sum is 69.

The spelling of 2145573889269 in words is "two trillion, one hundred forty-five billion, five hundred seventy-three million, eight hundred eighty-nine thousand, two hundred sixty-nine".