45513615509 has 2 divisors, whose sum is σ = 45513615510. Its totient is φ = 45513615508.

The previous prime is 45513615487. The next prime is 45513615533. The reversal of 45513615509 is 90551631554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25956432100 + 19557183409 = 161110^2 + 139847^2 .

It is a cyclic number.

It is not a de Polignac number, because 45513615509 - 2¹² = 45513611413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45513615509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45513615599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22756807754 + 22756807755.

It is an arithmetic number, because the mean of its divisors is an integer number (22756807755).

Almost surely, 2^45513615509 is an apocalyptic number.

It is an amenable number.

45513615509 is a deficient number, since it is larger than the sum of its proper divisors (1).

45513615509 is an equidigital number, since it uses as much as digits as its factorization.

45513615509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405000, while the sum is 44.

The spelling of 45513615509 in words is "forty-five billion, five hundred thirteen million, six hundred fifteen thousand, five hundred nine".