1271008668 has 12 divisors (see below), whose sum is σ = 2965686920. Its totient is φ = 423669552.

The previous prime is 1271008619. The next prime is 1271008679. The reversal of 1271008668 is 8668001721.

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

It is a super-2 number, since 2×1271008668² = 3230926068262268448, which contains 22 as substring.

It is a congruent number.

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, 52958683 + ... + 52958706.

Almost surely, 2^1271008668 is an apocalyptic number.

It is an amenable number.

1271008668 is an abundant number, since it is smaller than the sum of its proper divisors (1694678252).

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

1271008668 is a wasteful number, since it uses less digits than its factorization.

1271008668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105917396 (or 105917394 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1271008668 is about 35651.2085068655. The cubic root of 1271008668 is about 1083.2187548617.

The spelling of 1271008668 in words is "one billion, two hundred seventy-one million, eight thousand, six hundred sixty-eight".