20450376672 has 48 divisors (see below), whose sum is σ = 58562445312. Its totient is φ = 6197083520.

The previous prime is 20450376637. The next prime is 20450376673. The reversal of 20450376672 is 27667305402.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450376673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9681888 + ... + 9683999.

It is an arithmetic number, because the mean of its divisors is an integer number (1220050944).

Almost surely, 2^20450376672 is an apocalyptic number.

20450376672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20450376672 is an abundant number, since it is smaller than the sum of its proper divisors (38112068640).

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

20450376672 is a wasteful number, since it uses less digits than its factorization.

20450376672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19365911 (or 19365903 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 20450376672 in words is "twenty billion, four hundred fifty million, three hundred seventy-six thousand, six hundred seventy-two".