513643350230465 has 64 divisors (see below), whose sum is σ = 783126671523840. Its totient is φ = 314614066533120.

The previous prime is 513643350230411. The next prime is 513643350230513. The reversal of 513643350230465 is 564032053346315.

It is not a de Polignac number, because 513643350230465 - 2¹⁸ = 513643349968321 is a prime.

It is a super-2 number, since 2×513643350230465² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254563592 + ... + 256573398.

It is an arithmetic number, because the mean of its divisors is an integer number (12236354242560).

Almost surely, 2^{513643350230465} is an apocalyptic number.

It is an amenable number.

513643350230465 is a deficient number, since it is larger than the sum of its proper divisors (269483321293375).

513643350230465 is a wasteful number, since it uses less digits than its factorization.

513643350230465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027982.

The product of its (nonzero) digits is 11664000, while the sum is 50.

The spelling of 513643350230465 in words is "five hundred thirteen trillion, six hundred forty-three billion, three hundred fifty million, two hundred thirty thousand, four hundred sixty-five".