513401543263 has 8 divisors (see below), whose sum is σ = 597815274528. Its totient is φ = 431755475424.

The previous prime is 513401543261. The next prime is 513401543339. The reversal of 513401543263 is 362345104315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513401543263 - 2¹ = 513401543261 is a prime.

It is a super-2 number, since 2×513401543263² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513401543261) 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, 691915456 + ... + 691916197.

It is an arithmetic number, because the mean of its divisors is an integer number (74726909316).

Almost surely, 2^513401543263 is an apocalyptic number.

513401543263 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

513401543263 is a deficient number, since it is larger than the sum of its proper divisors (84413731265).

513401543263 is a wasteful number, since it uses less digits than its factorization.

513401543263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383831713.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 513401543263 its reverse (362345104315), we get a palindrome (875746647578).

The spelling of 513401543263 in words is "five hundred thirteen billion, four hundred one million, five hundred forty-three thousand, two hundred sixty-three".