513440443545 has 16 divisors (see below), whose sum is σ = 821520405312. Its totient is φ = 273829671360.

The previous prime is 513440443487. The next prime is 513440443573. The reversal of 513440443545 is 545344044315.

It is not a de Polignac number, because 513440443545 - 2²² = 513436249241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513440443497 and 513440443506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562290 + ... + 1158900.

It is an arithmetic number, because the mean of its divisors is an integer number (51345025332).

Almost surely, 2^513440443545 is an apocalyptic number.

It is an amenable number.

513440443545 is a deficient number, since it is larger than the sum of its proper divisors (308079961767).

513440443545 is a wasteful number, since it uses less digits than its factorization.

513440443545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653992.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 513440443545 in words is "five hundred thirteen billion, four hundred forty million, four hundred forty-three thousand, five hundred forty-five".