20988084883719 has 64 divisors (see below), whose sum is σ = 29713992892416. Its totient is φ = 13155747840000.

The previous prime is 20988084883693. The next prime is 20988084883789. The reversal of 20988084883719 is 91738848088902.

It is not a de Polignac number, because 20988084883719 - 2¹¹ = 20988084881671 is a prime.

It is a super-2 number, since 2×20988084883719² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20988084883789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3857392039 + ... + 3857397479.

It is an arithmetic number, because the mean of its divisors is an integer number (464281138944).

Almost surely, 2^{20988084883719} is an apocalyptic number.

20988084883719 is a deficient number, since it is larger than the sum of its proper divisors (8725908008697).

20988084883719 is a wasteful number, since it uses less digits than its factorization.

20988084883719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 445906944, while the sum is 75.

The spelling of 20988084883719 in words is "twenty trillion, nine hundred eighty-eight billion, eighty-four million, eight hundred eighty-three thousand, seven hundred nineteen".