431626025426 has 4 divisors (see below), whose sum is σ = 647439038142. Its totient is φ = 215813012712.

The previous prime is 431626025423. The next prime is 431626025429. The reversal of 431626025426 is 624520626134.

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

It is an interprime number because it is at equal distance from previous prime (431626025423) and next prime (431626025429).

It can be written as a sum of positive squares in only one way, i.e., 431222055625 + 403969801 = 656675^2 + 20099^2 .

It is not an unprimeable number, because it can be changed into a prime (431626025423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107906506355 + ... + 107906506358.

Almost surely, 2^431626025426 is an apocalyptic number.

431626025426 is a deficient number, since it is larger than the sum of its proper divisors (215813012716).

431626025426 is a wasteful number, since it uses less digits than its factorization.

431626025426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215813012715.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 431626025426 in words is "four hundred thirty-one billion, six hundred twenty-six million, twenty-five thousand, four hundred twenty-six".