503383687172 has 12 divisors (see below), whose sum is σ = 882007674576. Its totient is φ = 251381494440.

The previous prime is 503383687151. The next prime is 503383687181. The reversal of 503383687172 is 271786383305.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77583638 + ... + 77590125.

It is an arithmetic number, because the mean of its divisors is an integer number (73500639548).

Almost surely, 2^503383687172 is an apocalyptic number.

It is an amenable number.

503383687172 is a deficient number, since it is larger than the sum of its proper divisors (378623987404).

503383687172 is a wasteful number, since it uses less digits than its factorization.

503383687172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155174578 (or 155174576 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 503383687172 in words is "five hundred three billion, three hundred eighty-three million, six hundred eighty-seven thousand, one hundred seventy-two".