624499804009 has 9 divisors (see below), whose sum is σ = 626110527549. Its totient is φ = 622893219660.

The previous prime is 624499803929. The next prime is 624499804037. The reversal of 624499804009 is 900408994426.

The square root of 624499804009 is 790253.

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

624499804009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 624499804009 - 2³¹ = 622352320361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (624493804009) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 413301564 + ... + 413303074.

Almost surely, 2^624499804009 is an apocalyptic number.

624499804009 is the 790253-rd square number.

624499804009 is the 395127-th centered octagonal number.

It is an amenable number.

624499804009 is a deficient number, since it is larger than the sum of its proper divisors (1610723540).

624499804009 is an frugal number, since it uses more digits than its factorization.

624499804009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 624499804009 in words is "six hundred twenty-four billion, four hundred ninety-nine million, eight hundred four thousand, nine".