513123667475 has 6 divisors (see below), whose sum is σ = 636273347700. Its totient is φ = 410498933960.

The previous prime is 513123667471. The next prime is 513123667493. The reversal of 513123667475 is 574766321315.

It is not a de Polignac number, because 513123667475 - 2² = 513123667471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513123667471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10262473325 + ... + 10262473374.

It is an arithmetic number, because the mean of its divisors is an integer number (106045557950).

Almost surely, 2^513123667475 is an apocalyptic number.

513123667475 is a deficient number, since it is larger than the sum of its proper divisors (123149680225).

513123667475 is a wasteful number, since it uses less digits than its factorization.

513123667475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20524946709 (or 20524946704 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 50.

The spelling of 513123667475 in words is "five hundred thirteen billion, one hundred twenty-three million, six hundred sixty-seven thousand, four hundred seventy-five".