12344576690 has 16 divisors (see below), whose sum is σ = 23527311192. Its totient is φ = 4647369984.

The previous prime is 12344576627. The next prime is 12344576693. The reversal of 12344576690 is 9667544321.

It can be written as a sum of positive squares in 4 ways, for example, as 11166782929 + 1177793761 = 105673^2 + 34319^2 .

It is a super-2 number, since 2×12344576690² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12344576693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36307409 + ... + 36307748.

Almost surely, 2^12344576690 is an apocalyptic number.

12344576690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12344576690 is a deficient number, since it is larger than the sum of its proper divisors (11182734502).

12344576690 is a wasteful number, since it uses less digits than its factorization.

12344576690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615181.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 12344576690 in words is "twelve billion, three hundred forty-four million, five hundred seventy-six thousand, six hundred ninety".