523376703556493 has 4 divisors (see below), whose sum is σ = 550922845848960. Its totient is φ = 495830561264028.

The previous prime is 523376703556489. The next prime is 523376703556561. The reversal of 523376703556493 is 394655307673325.

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 523376703556493 - 2² = 523376703556489 is a prime.

It is a super-2 number, since 2×523376703556493² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523376703556403) 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, 13773071146205 + ... + 13773071146242.

It is an arithmetic number, because the mean of its divisors is an integer number (137730711462240).

Almost surely, 2^{523376703556493} is an apocalyptic number.

It is an amenable number.

523376703556493 is a deficient number, since it is larger than the sum of its proper divisors (27546142292467).

523376703556493 is a wasteful number, since it uses less digits than its factorization.

523376703556493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27546142292466.

The product of its (nonzero) digits is 1285956000, while the sum is 68.

The spelling of 523376703556493 in words is "five hundred twenty-three trillion, three hundred seventy-six billion, seven hundred three million, five hundred fifty-six thousand, four hundred ninety-three".