513232664634642 has 16 divisors (see below), whose sum is σ = 1026469107731232. Its totient is φ = 171076925134560.

The previous prime is 513232664634589. The next prime is 513232664634643. The reversal of 513232664634642 is 246436466232315.

It is not an unprimeable number, because it can be changed into a prime (513232664634643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155668584 + ... + 158931347.

It is an arithmetic number, because the mean of its divisors is an integer number (64154319233202).

Almost surely, 2^{513232664634642} is an apocalyptic number.

513232664634642 is an abundant number, since it is smaller than the sum of its proper divisors (513236443096590).

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

513232664634642 is a wasteful number, since it uses less digits than its factorization.

513232664634642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314871833.

The product of its digits is 89579520, while the sum is 57.

The spelling of 513232664634642 in words is "five hundred thirteen trillion, two hundred thirty-two billion, six hundred sixty-four million, six hundred thirty-four thousand, six hundred forty-two".