427461517666 has 32 divisors (see below), whose sum is σ = 682309555200. Its totient is φ = 200275396560.

The previous prime is 427461517627. The next prime is 427461517687. The reversal of 427461517666 is 666715164724.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218761 + ... + 3348931.

It is an arithmetic number, because the mean of its divisors is an integer number (21322173600).

Almost surely, 2^427461517666 is an apocalyptic number.

427461517666 is a deficient number, since it is larger than the sum of its proper divisors (254848037534).

427461517666 is a wasteful number, since it uses less digits than its factorization.

427461517666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131134.

The product of its digits is 10160640, while the sum is 55.

The spelling of 427461517666 in words is "four hundred twenty-seven billion, four hundred sixty-one million, five hundred seventeen thousand, six hundred sixty-six".