513309752396 has 24 divisors (see below), whose sum is σ = 1041942187776. Its totient is φ = 216706461840.

The previous prime is 513309752377. The next prime is 513309752399. The reversal of 513309752396 is 693257903315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (513309752399) 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, 136807760 + ... + 136811511.

It is an arithmetic number, because the mean of its divisors is an integer number (43414257824).

Almost surely, 2^513309752396 is an apocalyptic number.

It is an amenable number.

513309752396 is an abundant number, since it is smaller than the sum of its proper divisors (528632435380).

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

513309752396 is a wasteful number, since it uses less digits than its factorization.

513309752396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273619349 (or 273619347 counting only the distinct ones).

The product of its (nonzero) digits is 4592700, while the sum is 53.

The spelling of 513309752396 in words is "five hundred thirteen billion, three hundred nine million, seven hundred fifty-two thousand, three hundred ninety-six".