20131782753 has 4 divisors (see below), whose sum is σ = 26842377008. Its totient is φ = 13421188500.

The previous prime is 20131782751. The next prime is 20131782773. The reversal of 20131782753 is 35728713102.

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 not a de Polignac number, because 20131782753 - 2¹ = 20131782751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131782751) 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 3 ways as a sum of consecutive naturals, for example, 3355297123 + ... + 3355297128.

It is an arithmetic number, because the mean of its divisors is an integer number (6710594252).

Almost surely, 2^20131782753 is an apocalyptic number.

It is an amenable number.

20131782753 is a deficient number, since it is larger than the sum of its proper divisors (6710594255).

20131782753 is an equidigital number, since it uses as much as digits as its factorization.

20131782753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710594254.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 20131782753 in words is "twenty billion, one hundred thirty-one million, seven hundred eighty-two thousand, seven hundred fifty-three".