13405430434432 has 32 divisors (see below), whose sum is σ = 26724819993300. Its totient is φ = 6698024632320.

The previous prime is 13405430434423. The next prime is 13405430434441. The reversal of 13405430434432 is 23443403450431.

It is an interprime number because it is at equal distance from previous prime (13405430434423) and next prime (13405430434441).

It can be written as a sum of positive squares in 2 ways, for example, as 9096883338816 + 4308547095616 = 3016104^2 + 2075704^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36461569 + ... + 36827392.

Almost surely, 2^{13405430434432} is an apocalyptic number.

It is an amenable number.

13405430434432 is a deficient number, since it is larger than the sum of its proper divisors (13319389558868).

13405430434432 is an equidigital number, since it uses as much as digits as its factorization.

13405430434432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73290404 (or 73290392 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 13405430434432 its reverse (23443403450431), we get a palindrome (36848833884863).

The spelling of 13405430434432 in words is "thirteen trillion, four hundred five billion, four hundred thirty million, four hundred thirty-four thousand, four hundred thirty-two".