518424081970 has 16 divisors (see below), whose sum is σ = 933171587928. Its totient is φ = 207367801600.

The previous prime is 518424081953. The next prime is 518424081977. The reversal of 518424081970 is 79180424815.

It can be written as a sum of positive squares in 4 ways, for example, as 430219239921 + 88204842049 = 655911^2 + 296993^2 .

It is not an unprimeable number, because it can be changed into a prime (518424081977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927770 + ... + 2180170.

Almost surely, 2^518424081970 is an apocalyptic number.

518424081970 is a deficient number, since it is larger than the sum of its proper divisors (414747505958).

518424081970 is a wasteful number, since it uses less digits than its factorization.

518424081970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457805.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 518424081970 in words is "five hundred eighteen billion, four hundred twenty-four million, eighty-one thousand, nine hundred seventy".