20027563730 has 8 divisors (see below), whose sum is σ = 36049614732. Its totient is φ = 8011025488.

The previous prime is 20027563729. The next prime is 20027563739. The reversal of 20027563730 is 3736572002.

It can be written as a sum of positive squares in 2 ways, for example, as 19603080121 + 424483609 = 140011^2 + 20603^2 .

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

It is a super-2 number, since 2×20027563730² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20027563739) 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 3 ways as a sum of consecutive naturals, for example, 1001378177 + ... + 1001378196.

Almost surely, 2^20027563730 is an apocalyptic number.

20027563730 is a deficient number, since it is larger than the sum of its proper divisors (16022051002).

20027563730 is a wasteful number, since it uses less digits than its factorization.

20027563730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002756380.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 20027563730 in words is "twenty billion, twenty-seven million, five hundred sixty-three thousand, seven hundred thirty".