513902981232 has 60 divisors (see below), whose sum is σ = 1513910106280. Its totient is φ = 162285151104.

The previous prime is 513902981219. The next prime is 513902981233. The reversal of 513902981232 is 232189209315.

513902981232 is a `hidden beast` number, since 5 + 1 + 390 + 29 + 8 + 1 + 232 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513902981233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93912283 + ... + 93917754.

Almost surely, 2^513902981232 is an apocalyptic number.

It is an amenable number.

513902981232 is an abundant number, since it is smaller than the sum of its proper divisors (1000007125048).

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

513902981232 is a wasteful number, since it uses less digits than its factorization.

513902981232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187830070 (or 187830061 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 513902981232 in words is "five hundred thirteen billion, nine hundred two million, nine hundred eighty-one thousand, two hundred thirty-two".