20748672086 has 8 divisors (see below), whose sum is σ = 31134642240. Its totient is φ = 10370458008.

The previous prime is 20748672067. The next prime is 20748672103. The reversal of 20748672086 is 68027684702.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1932326 + ... + 1943033.

It is an arithmetic number, because the mean of its divisors is an integer number (3891830280).

Almost surely, 2^20748672086 is an apocalyptic number.

20748672086 is a deficient number, since it is larger than the sum of its proper divisors (10385970154).

20748672086 is a wasteful number, since it uses less digits than its factorization.

20748672086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878038.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 20748672086 in words is "twenty billion, seven hundred forty-eight million, six hundred seventy-two thousand, eighty-six".