523661967297 has 12 divisors (see below), whose sum is σ = 864457850880. Its totient is φ = 299235409848.

The previous prime is 523661967229. The next prime is 523661967347. The reversal of 523661967297 is 792769166325.

523661967297 is a `hidden beast` number, since 5 + 2 + 3 + 6 + 619 + 6 + 7 + 2 + 9 + 7 = 666.

It is not a de Polignac number, because 523661967297 - 2⁸ = 523661967041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 8312094719 = 523661967297 / (5 + 2 + 3 + 6 + 6 + 1 + 9 + 6 + 7 + 2 + 9 + 7).

It is not an unprimeable number, because it can be changed into a prime (523661967197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4156047297 + ... + 4156047422.

It is an arithmetic number, because the mean of its divisors is an integer number (72038154240).

Almost surely, 2^523661967297 is an apocalyptic number.

It is an amenable number.

523661967297 is a deficient number, since it is larger than the sum of its proper divisors (340795883583).

523661967297 is a wasteful number, since it uses less digits than its factorization.

523661967297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312094732 (or 8312094729 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 523661967297 in words is "five hundred twenty-three billion, six hundred sixty-one million, nine hundred sixty-seven thousand, two hundred ninety-seven".