18310030856 has 16 divisors (see below), whose sum is σ = 36972177900. Its totient is φ = 8450783424.

The previous prime is 18310030847. The next prime is 18310030859. The reversal of 18310030856 is 65803001381.

It can be written as a sum of positive squares in 2 ways, for example, as 18092940100 + 217090756 = 134510^2 + 14734^2 .

It is not an unprimeable number, because it can be changed into a prime (18310030859) 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, 88028891 + ... + 88029098.

Almost surely, 2^18310030856 is an apocalyptic number.

It is an amenable number.

18310030856 is an abundant number, since it is smaller than the sum of its proper divisors (18662147044).

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

18310030856 is a wasteful number, since it uses less digits than its factorization.

18310030856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176058008 (or 176058004 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 18310030856 in words is "eighteen billion, three hundred ten million, thirty thousand, eight hundred fifty-six".