20799917734 has 8 divisors (see below), whose sum is σ = 31788553680. Its totient is φ = 10203733176.

The previous prime is 20799917717. The next prime is 20799917753. The reversal of 20799917734 is 43771999702.

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, 98112714 + ... + 98112925.

It is an arithmetic number, because the mean of its divisors is an integer number (3973569210).

Almost surely, 2^20799917734 is an apocalyptic number.

20799917734 is a deficient number, since it is larger than the sum of its proper divisors (10988635946).

20799917734 is a wasteful number, since it uses less digits than its factorization.

20799917734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196225694.

The product of its (nonzero) digits is 6001128, while the sum is 58.

The spelling of 20799917734 in words is "twenty billion, seven hundred ninety-nine million, nine hundred seventeen thousand, seven hundred thirty-four".