45013138569 has 27 divisors (see below), whose sum is σ = 75641808333. Its totient is φ = 25719247512.

The previous prime is 45013138529. The next prime is 45013138603. The reversal of 45013138569 is 96583131054.

The square root of 45013138569 is 212163.

It is a perfect power (a square), and thus also a powerful number.

45013138569 is a `hidden beast` number, since 4 + 50 + 1 + 3 + 1 + 38 + 569 = 666.

It is not a de Polignac number, because 45013138569 - 2²⁷ = 44878920841 is a prime.

It is a super-2 number, since 2×45013138569² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45013138519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4450372 + ... + 4460474.

Almost surely, 2^45013138569 is an apocalyptic number.

45013138569 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

45013138569 is the 212163-rd square number.

45013138569 is the 106082-nd centered octagonal number.

It is an amenable number.

45013138569 is a deficient number, since it is larger than the sum of its proper divisors (30628669764).

45013138569 is an frugal number, since it uses more digits than its factorization.

45013138569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20226 (or 10113 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 45013138569 in words is "forty-five billion, thirteen million, one hundred thirty-eight thousand, five hundred sixty-nine".