518271913 has 12 divisors (see below), whose sum is σ = 534682512. Its totient is φ = 502350480.

The previous prime is 518271899. The next prime is 518271917. The reversal of 518271913 is 319172815.

It is not a de Polignac number, because 518271913 - 2²¹ = 516174761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

518271913 is a Rhonda number in base 10.

Its product of digits (15120) is a multiple of the sum of its prime factors (1512).

It is not an unprimeable number, because it can be changed into a prime (518271917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474498 + ... + 475588.

It is an arithmetic number, because the mean of its divisors is an integer number (44556876).

Almost surely, 2^518271913 is an apocalyptic number.

It is an amenable number.

518271913 is a deficient number, since it is larger than the sum of its proper divisors (16410599).

518271913 is a wasteful number, since it uses less digits than its factorization.

518271913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1475 counting only the distinct ones).

The product of its digits is 15120, while the sum is 37.

The square root of 518271913 is about 22765.5861554233. The cubic root of 518271913 is about 803.2533728754.

The spelling of 518271913 in words is "five hundred eighteen million, two hundred seventy-one thousand, nine hundred thirteen".