19755263923 has 4 divisors (see below), whose sum is σ = 19761343848. Its totient is φ = 19749184000.

The previous prime is 19755263911. The next prime is 19755263947. The reversal of 19755263923 is 32936255791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19755263923 - 2¹³ = 19755255731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19755263993) 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, 3035086 + ... + 3041587.

It is an arithmetic number, because the mean of its divisors is an integer number (4940335962).

Almost surely, 2^19755263923 is an apocalyptic number.

19755263923 is a deficient number, since it is larger than the sum of its proper divisors (6079925).

19755263923 is an equidigital number, since it uses as much as digits as its factorization.

19755263923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6079924.

The product of its digits is 3061800, while the sum is 52.

The spelling of 19755263923 in words is "nineteen billion, seven hundred fifty-five million, two hundred sixty-three thousand, nine hundred twenty-three".