12238454345 has 16 divisors (see below), whose sum is σ = 15820978320. Its totient is φ = 9034696704.

The previous prime is 12238454251. The next prime is 12238454351. The reversal of 12238454345 is 54345483221.

It can be written as a sum of positive squares in 8 ways, for example, as 99042304 + 12139412041 = 9952^2 + 110179^2 .

It is a cyclic number.

It is not a de Polignac number, because 12238454345 - 2⁸ = 12238454089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182801 + ... + 240609.

It is an arithmetic number, because the mean of its divisors is an integer number (988811145).

Almost surely, 2^12238454345 is an apocalyptic number.

It is an amenable number.

12238454345 is a deficient number, since it is larger than the sum of its proper divisors (3582523975).

12238454345 is a wasteful number, since it uses less digits than its factorization.

12238454345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61084.

The product of its digits is 460800, while the sum is 41.

The spelling of 12238454345 in words is "twelve billion, two hundred thirty-eight million, four hundred fifty-four thousand, three hundred forty-five".