12423561652 has 6 divisors (see below), whose sum is σ = 21741232898. Its totient is φ = 6211780824.

The previous prime is 12423561607. The next prime is 12423561679. The reversal of 12423561652 is 25616532421.

It can be written as a sum of positive squares in only one way, i.e., 9161552656 + 3262008996 = 95716^2 + 57114^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552945203 + ... + 1552945210.

Almost surely, 2^12423561652 is an apocalyptic number.

It is an amenable number.

12423561652 is a deficient number, since it is larger than the sum of its proper divisors (9317671246).

12423561652 is a wasteful number, since it uses less digits than its factorization.

12423561652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105890417 (or 3105890415 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 12423561652 in words is "twelve billion, four hundred twenty-three million, five hundred sixty-one thousand, six hundred fifty-two".