499321789201 has 4 divisors (see below), whose sum is σ = 528693659172. Its totient is φ = 469949919232.

The previous prime is 499321789129. The next prime is 499321789217. The reversal of 499321789201 is 102987123994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102987123994 = 2 ⋅51493561997.

It can be written as a sum of positive squares in 2 ways, for example, as 144077180625 + 355244608576 = 379575^2 + 596024^2 .

It is not a de Polignac number, because 499321789201 - 2³⁷ = 361882835729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499321789231) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14685934960 + ... + 14685934993.

It is an arithmetic number, because the mean of its divisors is an integer number (132173414793).

Almost surely, 2^499321789201 is an apocalyptic number.

It is an amenable number.

499321789201 is a deficient number, since it is larger than the sum of its proper divisors (29371869971).

499321789201 is a wasteful number, since it uses less digits than its factorization.

499321789201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371869970.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 499321789201 in words is "four hundred ninety-nine billion, three hundred twenty-one million, seven hundred eighty-nine thousand, two hundred one".