503692542369 has 15 divisors (see below), whose sum is σ = 752439142147. Its totient is φ = 335790769968.

The previous prime is 503692542359. The next prime is 503692542413. The reversal of 503692542369 is 963245296305.

It is a happy number.

The square root of 503692542369 is 709713.

It is a perfect power (a square), and thus also a powerful number.

503692542369 is a `hidden beast` number, since 5 + 0 + 3 + 6 + 92 + 542 + 3 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130996944225 + 372695598144 = 361935^2 + 610488^2 .

It is a de Polignac number, because none of the positive numbers 2^k-503692542369 is a prime.

It is a super-2 number, since 2×503692542369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503692542359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6347989 + ... + 6426845.

Almost surely, 2^503692542369 is an apocalyptic number.

503692542369 is the 709713-rd square number.

503692542369 is the 354857-th centered octagonal number.

It is an amenable number.

503692542369 is a deficient number, since it is larger than the sum of its proper divisors (248746599778).

503692542369 is an frugal number, since it uses more digits than its factorization.

503692542369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157726 (or 78860 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 503692542369 in words is "five hundred three billion, six hundred ninety-two million, five hundred forty-two thousand, three hundred sixty-nine".