20050487684 has 24 divisors (see below), whose sum is σ = 37170093240. Its totient is φ = 9431023616.

The previous prime is 20050487669. The next prime is 20050487693. The reversal of 20050487684 is 48678405002.

It can be written as a sum of positive squares in 4 ways, for example, as 158206084 + 19892281600 = 12578^2 + 141040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75524 + ... + 214020.

It is an arithmetic number, because the mean of its divisors is an integer number (1548753885).

Almost surely, 2^20050487684 is an apocalyptic number.

It is an amenable number.

20050487684 is a deficient number, since it is larger than the sum of its proper divisors (17119605556).

20050487684 is a wasteful number, since it uses less digits than its factorization.

20050487684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140647 (or 140645 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 20050487684 in words is "twenty billion, fifty million, four hundred eighty-seven thousand, six hundred eighty-four".