20587982088 has 32 divisors (see below), whose sum is σ = 53707780800. Its totient is φ = 6564283968.

The previous prime is 20587982053. The next prime is 20587982101. The reversal of 20587982088 is 88028978502.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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, 18647983 + ... + 18649086.

It is an arithmetic number, because the mean of its divisors is an integer number (1678368150).

Almost surely, 2^20587982088 is an apocalyptic number.

It is an amenable number.

20587982088 is an abundant number, since it is smaller than the sum of its proper divisors (33119798712).

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

20587982088 is a wasteful number, since it uses less digits than its factorization.

20587982088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37297101 (or 37297097 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The spelling of 20587982088 in words is "twenty billion, five hundred eighty-seven million, nine hundred eighty-two thousand, eighty-eight".