12504402434 has 4 divisors (see below), whose sum is σ = 18756603654. Its totient is φ = 6252201216.

The previous prime is 12504402401. The next prime is 12504402457. The reversal of 12504402434 is 43420440521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9174766225 + 3329636209 = 95785^2 + 57703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12504402397 and 12504402406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126100607 + ... + 3126100610.

Almost surely, 2^12504402434 is an apocalyptic number.

12504402434 is a deficient number, since it is larger than the sum of its proper divisors (6252201220).

12504402434 is an equidigital number, since it uses as much as digits as its factorization.

12504402434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252201219.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 12504402434 its reverse (43420440521), we get a palindrome (55924842955).

The spelling of 12504402434 in words is "twelve billion, five hundred four million, four hundred two thousand, four hundred thirty-four".