1271082680 has 32 divisors (see below), whose sum is σ = 3268499040. Its totient is φ = 435799680.

The previous prime is 1271082619. The next prime is 1271082713. The reversal of 1271082680 is 862801721.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1271082680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2269511 + ... + 2270070.

It is an arithmetic number, because the mean of its divisors is an integer number (102140595).

Almost surely, 2^1271082680 is an apocalyptic number.

1271082680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271082680 is an abundant number, since it is smaller than the sum of its proper divisors (1997416360).

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

1271082680 is a wasteful number, since it uses less digits than its factorization.

1271082680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539599 (or 4539595 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1271082680 is about 35652.2464930332. The cubic root of 1271082680 is about 1083.2397800606.

The spelling of 1271082680 in words is "one billion, two hundred seventy-one million, eighty-two thousand, six hundred eighty".