13634912345 has 8 divisors (see below), whose sum is σ = 16362557064. Its totient is φ = 10907488384.

The previous prime is 13634912327. The next prime is 13634912353. The reversal of 13634912345 is 54321943631.

It can be written as a sum of positive squares in 4 ways, for example, as 5665422361 + 7969489984 = 75269^2 + 89272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13634912345 - 2¹⁴ = 13634895961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150167 + ... + 223203.

It is an arithmetic number, because the mean of its divisors is an integer number (2045319633).

Almost surely, 2^13634912345 is an apocalyptic number.

It is an amenable number.

13634912345 is a deficient number, since it is larger than the sum of its proper divisors (2727644719).

13634912345 is an equidigital number, since it uses as much as digits as its factorization.

13634912345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110379.

The product of its digits is 233280, while the sum is 41.

The spelling of 13634912345 in words is "thirteen billion, six hundred thirty-four million, nine hundred twelve thousand, three hundred forty-five".