130043456820818 has 8 divisors (see below), whose sum is σ = 195076338876540. Its totient is φ = 65018010528640.

The previous prime is 130043456820817. The next prime is 130043456820829. The reversal of 130043456820818 is 818028654340031.

It can be written as a sum of positive squares in 2 ways, for example, as 125850860678929 + 4192596141889 = 11218327^2 + 2047583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×130043456820818² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130043456820818.

It is not an unprimeable number, because it can be changed into a prime (130043456820817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858897163 + ... + 1858967118.

Almost surely, 2^{130043456820818} is an apocalyptic number.

130043456820818 is a deficient number, since it is larger than the sum of its proper divisors (65032882055722).

130043456820818 is a wasteful number, since it uses less digits than its factorization.

130043456820818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717881772.

The product of its (nonzero) digits is 4423680, while the sum is 53.

The spelling of 130043456820818 in words is "one hundred thirty trillion, forty-three billion, four hundred fifty-six million, eight hundred twenty thousand, eight hundred eighteen".