45009228169 has 4 divisors (see below), whose sum is σ = 47656829844. Its totient is φ = 42361626496.

The previous prime is 45009228167. The next prime is 45009228227. The reversal of 45009228169 is 96182290054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33642896400 + 11366331769 = 183420^2 + 106613^2 .

It is a cyclic number.

It is not a de Polignac number, because 45009228169 - 2¹ = 45009228167 is a prime.

It is a super-2 number, since 2×45009228169² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45009228167) 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, 1323800812 + ... + 1323800845.

It is an arithmetic number, because the mean of its divisors is an integer number (11914207461).

Almost surely, 2^45009228169 is an apocalyptic number.

It is an amenable number.

45009228169 is a deficient number, since it is larger than the sum of its proper divisors (2647601675).

45009228169 is a wasteful number, since it uses less digits than its factorization.

45009228169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647601674.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 45009228169 in words is "forty-five billion, nine million, two hundred twenty-eight thousand, one hundred sixty-nine".