513163541461 has 4 divisors (see below), whose sum is σ = 513232144524. Its totient is φ = 513094938400.

The previous prime is 513163541419. The next prime is 513163541483. The reversal of 513163541461 is 164145361315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 428311347025 + 84852194436 = 654455^2 + 291294^2 .

It is a cyclic number.

It is not a de Polignac number, because 513163541461 - 2⁷ = 513163541333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513163547461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34290310 + ... + 34305271.

It is an arithmetic number, because the mean of its divisors is an integer number (128308036131).

Almost surely, 2^513163541461 is an apocalyptic number.

It is an amenable number.

513163541461 is a deficient number, since it is larger than the sum of its proper divisors (68603063).

513163541461 is an equidigital number, since it uses as much as digits as its factorization.

513163541461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68603062.

The product of its digits is 129600, while the sum is 40.

The spelling of 513163541461 in words is "five hundred thirteen billion, one hundred sixty-three million, five hundred forty-one thousand, four hundred sixty-one".