45143615609 has 4 divisors (see below), whose sum is σ = 45266623104. Its totient is φ = 45020608116.

The previous prime is 45143615567. The next prime is 45143615623. The reversal of 45143615609 is 90651634154.

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 45143615609 - 2⁸ = 45143615353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45143615609.

It is not an unprimeable number, because it can be changed into a prime (45143615659) 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, 61503197 + ... + 61503930.

It is an arithmetic number, because the mean of its divisors is an integer number (11316655776).

Almost surely, 2^45143615609 is an apocalyptic number.

It is an amenable number.

45143615609 is a deficient number, since it is larger than the sum of its proper divisors (123007495).

45143615609 is a wasteful number, since it uses less digits than its factorization.

45143615609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123007494.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 45143615609 in words is "forty-five billion, one hundred forty-three million, six hundred fifteen thousand, six hundred nine".