20076817984 has 14 divisors (see below), whose sum is σ = 39839935814. Its totient is φ = 10038408960.

The previous prime is 20076817979. The next prime is 20076818017. The reversal of 20076817984 is 48971867002.

It can be written as a sum of positive squares in only one way, i.e., 14641000000 + 5435817984 = 121000^2 + 73728^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156850077 + ... + 156850204.

It is an arithmetic number, because the mean of its divisors is an integer number (2845709701).

Almost surely, 2^20076817984 is an apocalyptic number.

It is an amenable number.

20076817984 is a deficient number, since it is larger than the sum of its proper divisors (19763117830).

20076817984 is an equidigital number, since it uses as much as digits as its factorization.

20076817984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313700293 (or 313700283 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 20076817984 in words is "twenty billion, seventy-six million, eight hundred seventeen thousand, nine hundred eighty-four".