1959323915423 has 4 divisors (see below), whose sum is σ = 2239227331920. Its totient is φ = 1679420498928.

The previous prime is 1959323915347. The next prime is 1959323915459. The reversal of 1959323915423 is 3245193239591.

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 1959323915423 - 2¹⁰ = 1959323914399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959323915323) 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, 139951708238 + ... + 139951708251.

It is an arithmetic number, because the mean of its divisors is an integer number (559806832980).

Almost surely, 2^{1959323915423} is an apocalyptic number.

1959323915423 is a deficient number, since it is larger than the sum of its proper divisors (279903416497).

1959323915423 is an equidigital number, since it uses as much as digits as its factorization.

1959323915423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279903416496.

The product of its digits is 7873200, while the sum is 56.

The spelling of 1959323915423 in words is "one trillion, nine hundred fifty-nine billion, three hundred twenty-three million, nine hundred fifteen thousand, four hundred twenty-three".