523985019877 has 16 divisors (see below), whose sum is σ = 582444494208. Its totient is φ = 467330834880.

The previous prime is 523985019863. The next prime is 523985019919. The reversal of 523985019877 is 778910589325.

It is a cyclic number.

It is not a de Polignac number, because 523985019877 - 2²⁷ = 523850802149 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 (523985019827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15311728 + ... + 15345910.

It is an arithmetic number, because the mean of its divisors is an integer number (36402780888).

Almost surely, 2^523985019877 is an apocalyptic number.

It is an amenable number.

523985019877 is a deficient number, since it is larger than the sum of its proper divisors (58459474331).

523985019877 is a wasteful number, since it uses less digits than its factorization.

523985019877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60540.

The product of its (nonzero) digits is 38102400, while the sum is 64.

The spelling of 523985019877 in words is "five hundred twenty-three billion, nine hundred eighty-five million, nineteen thousand, eight hundred seventy-seven".