513805106746 has 8 divisors (see below), whose sum is σ = 797283786420. Its totient is φ = 248043844608.

The previous prime is 513805106723. The next prime is 513805106761. The reversal of 513805106746 is 647601508315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 469925331121 + 43879775625 = 685511^2 + 209475^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 513805106696 and 513805106705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4429354311 + ... + 4429354426.

Almost surely, 2^513805106746 is an apocalyptic number.

513805106746 is a deficient number, since it is larger than the sum of its proper divisors (283478679674).

513805106746 is a wasteful number, since it uses less digits than its factorization.

513805106746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8858708768.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 513805106746 in words is "five hundred thirteen billion, eight hundred five million, one hundred six thousand, seven hundred forty-six".