12345476789 has 16 divisors (see below), whose sum is σ = 13126996080. Its totient is φ = 11570211840.

The previous prime is 12345476783. The next prime is 12345476863. The reversal of 12345476789 is 98767454321.

It can be written as a sum of positive squares in 8 ways, for example, as 20702500 + 12324774289 = 4550^2 + 111017^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345476789 - 2¹² = 12345472693 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345476783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5965847 + ... + 5967915.

It is an arithmetic number, because the mean of its divisors is an integer number (820437255).

Almost surely, 2^12345476789 is an apocalyptic number.

It is an amenable number.

12345476789 is a deficient number, since it is larger than the sum of its proper divisors (781519291).

12345476789 is a wasteful number, since it uses less digits than its factorization.

12345476789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400.

The product of its digits is 10160640, while the sum is 56.

The spelling of 12345476789 in words is "twelve billion, three hundred forty-five million, four hundred seventy-six thousand, seven hundred eighty-nine".