518004451356 has 48 divisors (see below), whose sum is σ = 1388286681600. Its totient is φ = 147257542080.

The previous prime is 518004451339. The next prime is 518004451373. The reversal of 518004451356 is 653154400815.

It is an interprime number because it is at equal distance from previous prime (518004451339) and next prime (518004451373).

It is a super-2 number, since 2×518004451356² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15477555 + ... + 15510986.

It is an arithmetic number, because the mean of its divisors is an integer number (28922639200).

Almost surely, 2^518004451356 is an apocalyptic number.

It is an amenable number.

518004451356 is an abundant number, since it is smaller than the sum of its proper divisors (870282230244).

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

518004451356 is a wasteful number, since it uses less digits than its factorization.

518004451356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30988754 (or 30988752 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 518004451356 in words is "five hundred eighteen billion, four million, four hundred fifty-one thousand, three hundred fifty-six".