20773629480 has 288 divisors, whose sum is σ = 68099940000. Its totient is φ = 5068604160.

The previous prime is 20773629473. The next prime is 20773629517. The reversal of 20773629480 is 8492637702.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 41630271 + ... + 41630769.

It is an arithmetic number, because the mean of its divisors is an integer number (236458125).

Almost surely, 2^20773629480 is an apocalyptic number.

20773629480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20773629480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34049970000).

20773629480 is an abundant number, since it is smaller than the sum of its proper divisors (47326310520).

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

20773629480 is a wasteful number, since it uses less digits than its factorization.

20773629480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 20773629480 in words is "twenty billion, seven hundred seventy-three million, six hundred twenty-nine thousand, four hundred eighty".