499321789256 has 8 divisors (see below), whose sum is σ = 936228354870. Its totient is φ = 249660894624.

The previous prime is 499321789237. The next prime is 499321789301. The reversal of 499321789256 is 652987123994.

It can be written as a sum of positive squares in only one way, i.e., 399613622500 + 99708166756 = 632150^2 + 315766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 499321789192 and 499321789201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31207611821 + ... + 31207611836.

Almost surely, 2^499321789256 is an apocalyptic number.

It is an amenable number.

499321789256 is a deficient number, since it is larger than the sum of its proper divisors (436906565614).

499321789256 is a wasteful number, since it uses less digits than its factorization.

499321789256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62415223663 (or 62415223659 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 65.

The spelling of 499321789256 in words is "four hundred ninety-nine billion, three hundred twenty-one million, seven hundred eighty-nine thousand, two hundred fifty-six".