523770878861231 has 4 divisors (see below), whose sum is σ = 523775960221200. Its totient is φ = 523765797501264.

The previous prime is 523770878861221. The next prime is 523770878861239. The reversal of 523770878861231 is 132168878077325.

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 523770878861231 - 2¹⁴ = 523770878844847 is a prime.

It is a super-4 number, since 4×523770878861231⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523770878861239) 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, 2540525366 + ... + 2540731523.

It is an arithmetic number, because the mean of its divisors is an integer number (130943990055300).

Almost surely, 2^{523770878861231} is an apocalyptic number.

523770878861231 is a deficient number, since it is larger than the sum of its proper divisors (5081359969).

523770878861231 is a wasteful number, since it uses less digits than its factorization.

523770878861231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081359968.

The product of its (nonzero) digits is 189665280, while the sum is 68.

The spelling of 523770878861231 in words is "five hundred twenty-three trillion, seven hundred seventy billion, eight hundred seventy-eight million, eight hundred sixty-one thousand, two hundred thirty-one".