20144986759873 has 8 divisors (see below), whose sum is σ = 21332067748992. Its totient is φ = 18958137078336.

The previous prime is 20144986759847. The next prime is 20144986759897. The reversal of 20144986759873 is 37895768944102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20144986759873 is a prime.

It is a super-2 number, since 2×20144986759873² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20144986759796 and 20144986759805.

It is not an unprimeable number, because it can be changed into a prime (20144986757873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57647565 + ... + 57995962.

It is an arithmetic number, because the mean of its divisors is an integer number (2666508468624).

It is a 2-persistent number, because it is pandigital, and so is 2⋅20144986759873 = 40289973519746, but 3⋅20144986759873 = 60434960279619 is not.

Almost surely, 2^{20144986759873} is an apocalyptic number.

It is an amenable number.

20144986759873 is a deficient number, since it is larger than the sum of its proper divisors (1187080989119).

20144986759873 is a wasteful number, since it uses less digits than its factorization.

20144986759873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115653791.

The product of its (nonzero) digits is 731566080, while the sum is 73.

The spelling of 20144986759873 in words is "twenty trillion, one hundred forty-four billion, nine hundred eighty-six million, seven hundred fifty-nine thousand, eight hundred seventy-three".