425601216242 has 4 divisors (see below), whose sum is σ = 638401824366. Its totient is φ = 212800608120.

The previous prime is 425601216239. The next prime is 425601216263. The reversal of 425601216242 is 242612106524.

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., 286739901361 + 138861314881 = 535481^2 + 372641^2 .

It is a super-2 number, since 2×425601216242² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 106400304059 + ... + 106400304062.

Almost surely, 2^425601216242 is an apocalyptic number.

425601216242 is a deficient number, since it is larger than the sum of its proper divisors (212800608124).

425601216242 is a wasteful number, since it uses less digits than its factorization.

425601216242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212800608123.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 425601216242 in words is "four hundred twenty-five billion, six hundred one million, two hundred sixteen thousand, two hundred forty-two".