20027213507 has 12 divisors (see below), whose sum is σ = 23577653736. Its totient is φ = 16959358080.

The previous prime is 20027213483. The next prime is 20027213513. The reversal of 20027213507 is 70531272002.

It is not a de Polignac number, because 20027213507 - 2¹⁰ = 20027212483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20027213507.

It is not an unprimeable number, because it can be changed into a prime (20027219507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2458094 + ... + 2466227.

It is an arithmetic number, because the mean of its divisors is an integer number (1964804478).

Almost surely, 2^20027213507 is an apocalyptic number.

20027213507 is a deficient number, since it is larger than the sum of its proper divisors (3550440229).

20027213507 is an equidigital number, since it uses as much as digits as its factorization.

20027213507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924418 (or 4924411 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

Adding to 20027213507 its reverse (70531272002), we get a palindrome (90558485509).

The spelling of 20027213507 in words is "twenty billion, twenty-seven million, two hundred thirteen thousand, five hundred seven".