2045147332609 has 8 divisors (see below), whose sum is σ = 2047785897960. Its totient is φ = 2042509756800.

The previous prime is 2045147332583. The next prime is 2045147332637. The reversal of 2045147332609 is 9062337415402.

It can be written as a sum of positive squares in 4 ways, for example, as 621934122384 + 1423213210225 = 788628^2 + 1192985^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2045147332609 - 2²³ = 2045138944001 is a prime.

It is a super-2 number, since 2×2045147332609² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045147332699) 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, 3934287 + ... + 4423675.

It is an arithmetic number, because the mean of its divisors is an integer number (255973237245).

Almost surely, 2^{2045147332609} is an apocalyptic number.

It is an amenable number.

2045147332609 is a deficient number, since it is larger than the sum of its proper divisors (2638565351).

2045147332609 is an equidigital number, since it uses as much as digits as its factorization.

2045147332609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494771.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 2045147332609 in words is "two trillion, forty-five billion, one hundred forty-seven million, three hundred thirty-two thousand, six hundred nine".