513678392479 has 8 divisors (see below), whose sum is σ = 587520749088. Its totient is φ = 439950968160.

The previous prime is 513678392467. The next prime is 513678392483. The reversal of 513678392479 is 974293876315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513678392479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513678392479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513678392419) 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, 28723492 + ... + 28741369.

It is an arithmetic number, because the mean of its divisors is an integer number (73440093636).

Almost surely, 2^513678392479 is an apocalyptic number.

513678392479 is a deficient number, since it is larger than the sum of its proper divisors (73842356609).

513678392479 is a wasteful number, since it uses less digits than its factorization.

513678392479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57466145.

The product of its digits is 68584320, while the sum is 64.

The spelling of 513678392479 in words is "five hundred thirteen billion, six hundred seventy-eight million, three hundred ninety-two thousand, four hundred seventy-nine".