45512085569 has 4 divisors (see below), whose sum is σ = 47081467860. Its totient is φ = 43942703280.

The previous prime is 45512085533. The next prime is 45512085581. The reversal of 45512085569 is 96558021554.

It is a happy number.

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 8857068544 + 36655017025 = 94112^2 + 191455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45512085569 is a prime.

It is a super-2 number, since 2×45512085569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45512085469) 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, 784691102 + ... + 784691159.

It is an arithmetic number, because the mean of its divisors is an integer number (11770366965).

Almost surely, 2^45512085569 is an apocalyptic number.

It is an amenable number.

45512085569 is a deficient number, since it is larger than the sum of its proper divisors (1569382291).

45512085569 is a wasteful number, since it uses less digits than its factorization.

45512085569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569382290.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 45512085569 in words is "forty-five billion, five hundred twelve million, eighty-five thousand, five hundred sixty-nine".