20147969922 has 16 divisors (see below), whose sum is σ = 40304112192. Its totient is φ = 6714627920.

The previous prime is 20147969921. The next prime is 20147969927. The reversal of 20147969922 is 22996974102.

20147969922 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20147969921) 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 7 ways as a sum of consecutive naturals, for example, 308229 + ... + 367832.

It is an arithmetic number, because the mean of its divisors is an integer number (2519007012).

Almost surely, 2^20147969922 is an apocalyptic number.

20147969922 is an abundant number, since it is smaller than the sum of its proper divisors (20156142270).

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

20147969922 is a wasteful number, since it uses less digits than its factorization.

20147969922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681033.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 20147969922 in words is "twenty billion, one hundred forty-seven million, nine hundred sixty-nine thousand, nine hundred twenty-two".