45323545521 has 16 divisors (see below), whose sum is σ = 64176076224. Its totient is φ = 28353905664.

The previous prime is 45323545511. The next prime is 45323545529. The reversal of 45323545521 is 12554532354.

It is not a de Polignac number, because 45323545521 - 2¹⁸ = 45323283377 is a prime.

It is a super-2 number, since 2×45323545521² (a number of 22 digits) contains 22 as substring.

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 45323545521.

It is not an unprimeable number, because it can be changed into a prime (45323545529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301355 + ... + 1335728.

It is an arithmetic number, because the mean of its divisors is an integer number (4011004764).

Almost surely, 2^45323545521 is an apocalyptic number.

It is an amenable number.

45323545521 is a deficient number, since it is larger than the sum of its proper divisors (18852530703).

45323545521 is a wasteful number, since it uses less digits than its factorization.

45323545521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637440.

The product of its digits is 360000, while the sum is 39.

The spelling of 45323545521 in words is "forty-five billion, three hundred twenty-three million, five hundred forty-five thousand, five hundred twenty-one".