1766470668 has 12 divisors (see below), whose sum is σ = 4121764920. Its totient is φ = 588823552.

The previous prime is 1766470637. The next prime is 1766470681. The reversal of 1766470668 is 8660746671.

It is a tau number, because it is divible by the number of its divisors (12).

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 self number, because there is not a number n which added to its sum of digits gives 1766470668.

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, 73602933 + ... + 73602956.

It is an arithmetic number, because the mean of its divisors is an integer number (343480410).

Almost surely, 2^1766470668 is an apocalyptic number.

It is an amenable number.

1766470668 is an abundant number, since it is smaller than the sum of its proper divisors (2355294252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1766470668 is a wasteful number, since it uses less digits than its factorization.

1766470668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147205896 (or 147205894 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 1766470668 is about 42029.4024225898. The cubic root of 1766470668 is about 1208.8399664756.

The spelling of 1766470668 in words is "one billion, seven hundred sixty-six million, four hundred seventy thousand, six hundred sixty-eight".