20858733753 has 32 divisors (see below), whose sum is σ = 32711667072.
Its totient is φ = 11655705600.
The previous prime is 20858733737. The next prime is 20858733761. The reversal of 20858733753 is 35733785802.
It is not a de Polignac number, because 20858733753 - 24 = 20858733737 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20858733696 and 20858733705.
It is not an unprimeable number, because it can be changed into a prime (20858735753) 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 31 ways as a sum of consecutive naturals, for example, 348513 + ... + 403953.
It is an arithmetic number, because the mean of its divisors is an integer number (1022239596).
Almost surely, 220858733753 is an apocalyptic number.
It is an amenable number.
20858733753 is a deficient number, since it is larger than the sum of its proper divisors (11852933319).
20858733753 is a wasteful number, since it uses less digits than its factorization.
20858733753 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56345.
The product of its (nonzero) digits is 4233600, while the sum is 51.
The spelling of 20858733753 in words is "twenty billion, eight hundred fifty-eight million, seven hundred thirty-three thousand, seven hundred fifty-three".