513999039629 has 2 divisors, whose sum is σ = 513999039630. Its totient is φ = 513999039628.

The previous prime is 513999039599. The next prime is 513999039661. The reversal of 513999039629 is 926930999315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499321717129 + 14677322500 = 706627^2 + 121150^2 .

It is a cyclic number.

It is not a de Polignac number, because 513999039629 - 2¹² = 513999035533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513999039679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256999519814 + 256999519815.

It is an arithmetic number, because the mean of its divisors is an integer number (256999519815).

Almost surely, 2^513999039629 is an apocalyptic number.

It is an amenable number.

513999039629 is a deficient number, since it is larger than the sum of its proper divisors (1).

513999039629 is an equidigital number, since it uses as much as digits as its factorization.

513999039629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31886460, while the sum is 65.

The spelling of 513999039629 in words is "five hundred thirteen billion, nine hundred ninety-nine million, thirty-nine thousand, six hundred twenty-nine".