518071272 has 32 divisors (see below), whose sum is σ = 1298868480. Its totient is φ = 172198400.

The previous prime is 518071259. The next prime is 518071303. The reversal of 518071272 is 272170815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22104 + ... + 39047.

It is an arithmetic number, because the mean of its divisors is an integer number (40589640).

Almost surely, 2^518071272 is an apocalyptic number.

It is an amenable number.

518071272 is an abundant number, since it is smaller than the sum of its proper divisors (780797208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518071272 is a wasteful number, since it uses less digits than its factorization.

518071272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61513 (or 61509 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 518071272 is about 22761.1790555762. The cubic root of 518071272 is about 803.1497037666.

The spelling of 518071272 in words is "five hundred eighteen million, seventy-one thousand, two hundred seventy-two".