8145980369 has 4 divisors (see below), whose sum is σ = 8146182144. Its totient is φ = 8145778596.

The previous prime is 8145980309. The next prime is 8145980377. The reversal of 8145980369 is 9630895418.

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 8145980369 - 2¹² = 8145976273 is a prime.

It is a super-2 number, since 2×8145980369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8145980369.

It is not an unprimeable number, because it can be changed into a prime (8145980309) 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, 17177 + ... + 128790.

It is an arithmetic number, because the mean of its divisors is an integer number (2036545536).

Almost surely, 2^8145980369 is an apocalyptic number.

It is an amenable number.

8145980369 is a deficient number, since it is larger than the sum of its proper divisors (201775).

8145980369 is a wasteful number, since it uses less digits than its factorization.

8145980369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201774.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 8145980369 is about 90255.0850035609. The cubic root of 8145980369 is about 2012.0917778746.

The spelling of 8145980369 in words is "eight billion, one hundred forty-five million, nine hundred eighty thousand, three hundred sixty-nine".