425431405202 has 8 divisors (see below), whose sum is σ = 640160191116. Its totient is φ = 212044674832.

The previous prime is 425431405181. The next prime is 425431405211. The reversal of 425431405202 is 202504134524.

It can be written as a sum of positive squares in 2 ways, for example, as 278183459761 + 147247945441 = 527431^2 + 383729^2 .

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

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, 335513093 + ... + 335514360.

Almost surely, 2^425431405202 is an apocalyptic number.

425431405202 is a deficient number, since it is larger than the sum of its proper divisors (214728785914).

425431405202 is a wasteful number, since it uses less digits than its factorization.

425431405202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671027772.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 425431405202 its reverse (202504134524), we get a palindrome (627935539726).

The spelling of 425431405202 in words is "four hundred twenty-five billion, four hundred thirty-one million, four hundred five thousand, two hundred two".