20873903477280 has 192 divisors, whose sum is σ = 77177027370240. Its totient is φ = 4642227154944.

The previous prime is 20873903477209. The next prime is 20873903477299. The reversal of 20873903477280 is 8277430937802.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83827995 + ... + 84076634.

It is an arithmetic number, because the mean of its divisors is an integer number (401963684220).

Almost surely, 2^{20873903477280} is an apocalyptic number.

20873903477280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20873903477280 is an abundant number, since it is smaller than the sum of its proper divisors (56303123892960).

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

20873903477280 is a wasteful number, since it uses less digits than its factorization.

20873903477280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167904691 (or 167904683 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 20873903477280 in words is "twenty trillion, eight hundred seventy-three billion, nine hundred three million, four hundred seventy-seven thousand, two hundred eighty".