20487876782 has 8 divisors (see below), whose sum is σ = 30819873000. Its totient is φ = 10214585784.

The previous prime is 20487876769. The next prime is 20487876797. The reversal of 20487876782 is 28767878402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14675432 + ... + 14676827.

It is an arithmetic number, because the mean of its divisors is an integer number (3852484125).

Almost surely, 2^20487876782 is an apocalyptic number.

20487876782 is a deficient number, since it is larger than the sum of its proper divisors (10331996218).

20487876782 is a wasteful number, since it uses less digits than its factorization.

20487876782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29352610.

The product of its (nonzero) digits is 16859136, while the sum is 59.

The spelling of 20487876782 in words is "twenty billion, four hundred eighty-seven million, eight hundred seventy-six thousand, seven hundred eighty-two".