427066660725 has 12 divisors (see below), whose sum is σ = 706083545856. Its totient is φ = 227768885680.

The previous prime is 427066660693. The next prime is 427066660799. The reversal of 427066660725 is 527066660724.

It is a happy number.

It is not a de Polignac number, because 427066660725 - 2⁵ = 427066660693 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2847110997 + ... + 2847111146.

It is an arithmetic number, because the mean of its divisors is an integer number (58840295488).

Almost surely, 2^427066660725 is an apocalyptic number.

It is an amenable number.

427066660725 is a deficient number, since it is larger than the sum of its proper divisors (279016885131).

427066660725 is a wasteful number, since it uses less digits than its factorization.

427066660725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694222156 (or 5694222151 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

Subtracting 427066660725 from its reverse (527066660724), we obtain a palindrome (99999999999).

The spelling of 427066660725 in words is "four hundred twenty-seven billion, sixty-six million, six hundred sixty thousand, seven hundred twenty-five".