513320012136642 has 32 divisors (see below), whose sum is σ = 1048894439307264. Its totient is φ = 167400455778000.

The previous prime is 513320012136623. The next prime is 513320012136643. The reversal of 513320012136642 is 246631210023315.

It is a self number, because there is not a number n which added to its sum of digits gives 513320012136642.

It is not an unprimeable number, because it can be changed into a prime (513320012136643) 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 15 ways as a sum of consecutive naturals, for example, 356059084 + ... + 357497847.

It is an arithmetic number, because the mean of its divisors is an integer number (32777951228352).

Almost surely, 2^{513320012136642} is an apocalyptic number.

513320012136642 is an abundant number, since it is smaller than the sum of its proper divisors (535574427170622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513320012136642 is a wasteful number, since it uses less digits than its factorization.

513320012136642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713559534.

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 513320012136642 its reverse (246631210023315), we get a palindrome (759951222159957).

The spelling of 513320012136642 in words is "five hundred thirteen trillion, three hundred twenty billion, twelve million, one hundred thirty-six thousand, six hundred forty-two".