513342642505 has 16 divisors (see below), whose sum is σ = 768013928064. Its totient is φ = 320005802880.

The previous prime is 513342642503. The next prime is 513342642529. The reversal of 513342642505 is 505246243315.

It is not a de Polignac number, because 513342642505 - 2¹ = 513342642503 is a prime.

It is a super-2 number, since 2×513342642505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513342642503) 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, 666678372 + ... + 666679141.

It is an arithmetic number, because the mean of its divisors is an integer number (48000870504).

Almost surely, 2^513342642505 is an apocalyptic number.

513342642505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

513342642505 is a deficient number, since it is larger than the sum of its proper divisors (254671285559).

513342642505 is a wasteful number, since it uses less digits than its factorization.

513342642505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333357536.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 513342642505 in words is "five hundred thirteen billion, three hundred forty-two million, six hundred forty-two thousand, five hundred five".