20327018730 has 16 divisors (see below), whose sum is σ = 48784845024. Its totient is φ = 5420538320.

The previous prime is 20327018717. The next prime is 20327018737. The reversal of 20327018730 is 3781072302.

It is a super-3 number, since 3×20327018730³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20327018691 and 20327018700.

It is not an unprimeable number, because it can be changed into a prime (20327018737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 338783616 + ... + 338783675.

It is an arithmetic number, because the mean of its divisors is an integer number (3049052814).

Almost surely, 2^20327018730 is an apocalyptic number.

20327018730 is an abundant number, since it is smaller than the sum of its proper divisors (28457826294).

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

20327018730 is a wasteful number, since it uses less digits than its factorization.

20327018730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677567301.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 20327018730 in words is "twenty billion, three hundred twenty-seven million, eighteen thousand, seven hundred thirty".