20787732702000 has 640 divisors, whose sum is σ = 86014566144000. Its totient is φ = 4743009792000.

The previous prime is 20787732701993. The next prime is 20787732702029. The reversal of 20787732702000 is 20723778702.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9068701 + ... + 11127299.

It is an arithmetic number, because the mean of its divisors is an integer number (134397759600).

Almost surely, 2^{20787732702000} is an apocalyptic number.

20787732702000 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 20787732702000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43007283072000).

20787732702000 is an abundant number, since it is smaller than the sum of its proper divisors (65226833442000).

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

20787732702000 is a wasteful number, since it uses less digits than its factorization.

20787732702000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058659 (or 2058637 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The spelling of 20787732702000 in words is "twenty trillion, seven hundred eighty-seven billion, seven hundred thirty-two million, seven hundred two thousand".