20747912982 has 16 divisors (see below), whose sum is σ = 41514141360. Its totient is φ = 6912918432.

The previous prime is 20747912963. The next prime is 20747912987. The reversal of 20747912982 is 28921974702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20747912987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748393 + ... + 775620.

It is an arithmetic number, because the mean of its divisors is an integer number (2594633835).

Almost surely, 2^20747912982 is an apocalyptic number.

20747912982 is an abundant number, since it is smaller than the sum of its proper divisors (20766228378).

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

20747912982 is a wasteful number, since it uses less digits than its factorization.

20747912982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526287.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 20747912982 in words is "twenty billion, seven hundred forty-seven million, nine hundred twelve thousand, nine hundred eighty-two".