20723727331753 has 4 divisors (see below), whose sum is σ = 20723805216000. Its totient is φ = 20723649447508.

The previous prime is 20723727331631. The next prime is 20723727331759. The reversal of 20723727331753 is 35713372732702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20723727331753 - 2¹³ = 20723727323561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20723727331753.

It is not an unprimeable number, because it can be changed into a prime (20723727331759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38541625 + ... + 39075622.

It is an arithmetic number, because the mean of its divisors is an integer number (5180951304000).

Almost surely, 2^{20723727331753} is an apocalyptic number.

It is an amenable number.

20723727331753 is a deficient number, since it is larger than the sum of its proper divisors (77884247).

20723727331753 is an equidigital number, since it uses as much as digits as its factorization.

20723727331753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77884246.

The product of its (nonzero) digits is 7779240, while the sum is 52.

The spelling of 20723727331753 in words is "twenty trillion, seven hundred twenty-three billion, seven hundred twenty-seven million, three hundred thirty-one thousand, seven hundred fifty-three".