21050063505702 has 192 divisors, whose sum is σ = 57347222400000. Its totient is φ = 5421074192640.

The previous prime is 21050063505649. The next prime is 21050063505719. The reversal of 21050063505702 is 20750536005012.

21050063505702 is a `hidden beast` number, since 2 + 1 + 0 + 50 + 0 + 6 + 35 + 0 + 570 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 114936799 + ... + 115119797.

It is an arithmetic number, because the mean of its divisors is an integer number (298683450000).

Almost surely, 2^{21050063505702} is an apocalyptic number.

21050063505702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21050063505702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28673611200000).

21050063505702 is an abundant number, since it is smaller than the sum of its proper divisors (36297158894298).

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

21050063505702 is a wasteful number, since it uses less digits than its factorization.

21050063505702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183731 (or 183728 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 21050063505702 in words is "twenty-one trillion, fifty billion, sixty-three million, five hundred five thousand, seven hundred two".