513670477823 has 2 divisors, whose sum is σ = 513670477824. Its totient is φ = 513670477822.

The previous prime is 513670477787. The next prime is 513670477861. The reversal of 513670477823 is 328774076315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513670477823 - 2¹⁶ = 513670412287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513670477423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256835238911 + 256835238912.

It is an arithmetic number, because the mean of its divisors is an integer number (256835238912).

Almost surely, 2^513670477823 is an apocalyptic number.

513670477823 is a deficient number, since it is larger than the sum of its proper divisors (1).

513670477823 is an equidigital number, since it uses as much as digits as its factorization.

513670477823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 513670477823 in words is "five hundred thirteen billion, six hundred seventy million, four hundred seventy-seven thousand, eight hundred twenty-three".