12780532305434 has 8 divisors (see below), whose sum is σ = 19170813642420. Its totient is φ = 6390261091296.

The previous prime is 12780532305433. The next prime is 12780532305461. The reversal of 12780532305434 is 43450323508721.

It can be written as a sum of positive squares in 2 ways, for example, as 12287653890625 + 492878414809 = 3505375^2 + 702053^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12780532305433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3497822 + ... + 6147830.

Almost surely, 2^{12780532305434} is an apocalyptic number.

12780532305434 is a deficient number, since it is larger than the sum of its proper divisors (6390281336986).

12780532305434 is a wasteful number, since it uses less digits than its factorization.

12780532305434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061424.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 12780532305434 in words is "twelve trillion, seven hundred eighty billion, five hundred thirty-two million, three hundred five thousand, four hundred thirty-four".