513682671397 has 4 divisors (see below), whose sum is σ = 587065910176. Its totient is φ = 440299432620.

The previous prime is 513682671389. The next prime is 513682671407. The reversal of 513682671397 is 793176286315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513682671397 - 2³ = 513682671389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513682671377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36691619379 + ... + 36691619392.

It is an arithmetic number, because the mean of its divisors is an integer number (146766477544).

Almost surely, 2^513682671397 is an apocalyptic number.

It is an amenable number.

513682671397 is a deficient number, since it is larger than the sum of its proper divisors (73383238779).

513682671397 is an equidigital number, since it uses as much as digits as its factorization.

513682671397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73383238778.

The product of its digits is 11430720, while the sum is 58.

The spelling of 513682671397 in words is "five hundred thirteen billion, six hundred eighty-two million, six hundred seventy-one thousand, three hundred ninety-seven".