20719872110 has 32 divisors (see below), whose sum is σ = 42641007552. Its totient is φ = 7101077760.

The previous prime is 20719872097. The next prime is 20719872137. The reversal of 20719872110 is 1127891702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117764 + ... + 235176.

It is an arithmetic number, because the mean of its divisors is an integer number (1332531486).

Almost surely, 2^20719872110 is an apocalyptic number.

20719872110 is an abundant number, since it is smaller than the sum of its proper divisors (21921135442).

20719872110 is a wasteful number, since it uses less digits than its factorization.

20719872110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119948.

The product of its (nonzero) digits is 14112, while the sum is 38.

The spelling of 20719872110 in words is "twenty billion, seven hundred nineteen million, eight hundred seventy-two thousand, one hundred ten".