45519907312529 has 16 divisors (see below), whose sum is σ = 50253981485904. Its totient is φ = 40963416729600.

The previous prime is 45519907312519. The next prime is 45519907312547. The reversal of 45519907312529 is 92521370991554.

It can be written as a sum of positive squares in 8 ways, for example, as 20270237053504 + 25249670259025 = 4502248^2 + 5024905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45519907312529 is a prime.

It is a super-2 number, since 2×45519907312529² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45519907312519) 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, 30649754 + ... + 32100579.

It is an arithmetic number, because the mean of its divisors is an integer number (3140873842869).

Almost surely, 2^{45519907312529} is an apocalyptic number.

It is an amenable number.

45519907312529 is a deficient number, since it is larger than the sum of its proper divisors (4734074173375).

45519907312529 is a wasteful number, since it uses less digits than its factorization.

45519907312529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62751748.

The product of its (nonzero) digits is 30618000, while the sum is 62.

The spelling of 45519907312529 in words is "forty-five trillion, five hundred nineteen billion, nine hundred seven million, three hundred twelve thousand, five hundred twenty-nine".