20348343672 has 64 divisors (see below), whose sum is σ = 51325401600. Its totient is φ = 6722338560.

The previous prime is 20348343671. The next prime is 20348343707. The reversal of 20348343672 is 27634384302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348343671) 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 15 ways as a sum of consecutive naturals, for example, 2162097 + ... + 2171487.

It is an arithmetic number, because the mean of its divisors is an integer number (801959400).

Almost surely, 2^20348343672 is an apocalyptic number.

It is an amenable number.

20348343672 is an abundant number, since it is smaller than the sum of its proper divisors (30977057928).

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

20348343672 is a wasteful number, since it uses less digits than its factorization.

20348343672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10192 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 20348343672 in words is "twenty billion, three hundred forty-eight million, three hundred forty-three thousand, six hundred seventy-two".