518931079552 has 16 divisors (see below), whose sum is σ = 1033808010300. Its totient is φ = 259465539712.

The previous prime is 518931079549. The next prime is 518931079571. The reversal of 518931079552 is 255970139815.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 518931079493 and 518931079502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027074402 + ... + 2027074657.

Almost surely, 2^518931079552 is an apocalyptic number.

It is an amenable number.

518931079552 is a deficient number, since it is larger than the sum of its proper divisors (514876930748).

518931079552 is an equidigital number, since it uses as much as digits as its factorization.

518931079552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054149073 (or 4054149061 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 55.

The spelling of 518931079552 in words is "five hundred eighteen billion, nine hundred thirty-one million, seventy-nine thousand, five hundred fifty-two".