20858733723 has 8 divisors (see below), whose sum is σ = 28489977936. Its totient is φ = 13566656000.

The previous prime is 20858733697. The next prime is 20858733737. The reversal of 20858733723 is 32733785802.

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

It is a cyclic number.

It is not a de Polignac number, because 20858733723 - 2¹⁴ = 20858717339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20858733523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84791478 + ... + 84791723.

It is an arithmetic number, because the mean of its divisors is an integer number (3561247242).

Almost surely, 2^20858733723 is an apocalyptic number.

20858733723 is a deficient number, since it is larger than the sum of its proper divisors (7631244213).

20858733723 is a wasteful number, since it uses less digits than its factorization.

20858733723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169583245.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 20858733723 in words is "twenty billion, eight hundred fifty-eight million, seven hundred thirty-three thousand, seven hundred twenty-three".