20841082834772 has 12 divisors (see below), whose sum is σ = 37069794878676. Its totient is φ = 10249712869440.

The previous prime is 20841082834661. The next prime is 20841082834777. The reversal of 20841082834772 is 27743828014802.

It can be written as a sum of positive squares in 2 ways, for example, as 7772308348996 + 13068774485776 = 2787886^2 + 3615076^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20841082834777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42707136713 + ... + 42707137200.

It is an arithmetic number, because the mean of its divisors is an integer number (3089149573223).

Almost surely, 2^{20841082834772} is an apocalyptic number.

It is an amenable number.

20841082834772 is a deficient number, since it is larger than the sum of its proper divisors (16228712043904).

20841082834772 is a wasteful number, since it uses less digits than its factorization.

20841082834772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85414273978 (or 85414273976 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 56.

The spelling of 20841082834772 in words is "twenty trillion, eight hundred forty-one billion, eighty-two million, eight hundred thirty-four thousand, seven hundred seventy-two".