13038646435 has 16 divisors (see below), whose sum is σ = 15895619136. Its totient is φ = 10265384448.

The previous prime is 13038646391. The next prime is 13038646499. The reversal of 13038646435 is 53464683031.

It is a cyclic number.

It is not a de Polignac number, because 13038646435 - 2⁷ = 13038646307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13038646391 and 13038646400.

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, 127722 + ... + 205888.

It is an arithmetic number, because the mean of its divisors is an integer number (993476196).

Almost surely, 2^13038646435 is an apocalyptic number.

13038646435 is a deficient number, since it is larger than the sum of its proper divisors (2856972701).

13038646435 is an equidigital number, since it uses as much as digits as its factorization.

13038646435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78702.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 13038646435 in words is "thirteen billion, thirty-eight million, six hundred forty-six thousand, four hundred thirty-five".