623314987009 has 27 divisors (see below), whose sum is σ = 742022192457. Its totient is φ = 522966787200.

The previous prime is 623314986929. The next prime is 623314987013. The reversal of 623314987009 is 900789413326.

The square root of 623314987009 is 789503.

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

It can be written as a sum of positive squares in 4 ways, for example, as 208542922225 + 414772064784 = 456665^2 + 644028^2 .

It is not a de Polignac number, because 623314987009 - 2¹¹ = 623314984961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623314987409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 112896169 + ... + 112901689.

Almost surely, 2^623314987009 is an apocalyptic number.

623314987009 is the 789503-rd square number.

623314987009 is the 394752-nd centered octagonal number.

It is an amenable number.

623314987009 is a deficient number, since it is larger than the sum of its proper divisors (118707205448).

623314987009 is an frugal number, since it uses more digits than its factorization.

623314987009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090 (or 5545 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 623314987009 in words is "six hundred twenty-three billion, three hundred fourteen million, nine hundred eighty-seven thousand, nine".