12290905108 has 6 divisors (see below), whose sum is σ = 21509083946. Its totient is φ = 6145452552.

The previous prime is 12290905091. The next prime is 12290905147. The reversal of 12290905108 is 80150909221.

It can be written as a sum of positive squares in only one way, i.e., 12217323024 + 73582084 = 110532^2 + 8578^2 .

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, 1536363135 + ... + 1536363142.

Almost surely, 2^12290905108 is an apocalyptic number.

It is an amenable number.

12290905108 is a deficient number, since it is larger than the sum of its proper divisors (9218178838).

12290905108 is a wasteful number, since it uses less digits than its factorization.

12290905108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072726281 (or 3072726279 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 12290905108 in words is "twelve billion, two hundred ninety million, nine hundred five thousand, one hundred eight".