1271870210280 has 128 divisors (see below), whose sum is σ = 3871661068800. Its totient is φ = 334209165312.

The previous prime is 1271870210227. The next prime is 1271870210297. The reversal of 1271870210280 is 820120781721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2926017 + ... + 3332463.

It is an arithmetic number, because the mean of its divisors is an integer number (30247352100).

Almost surely, 2^{1271870210280} is an apocalyptic number.

1271870210280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271870210280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935830534400).

1271870210280 is an abundant number, since it is smaller than the sum of its proper divisors (2599790858520).

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

1271870210280 is a wasteful number, since it uses less digits than its factorization.

1271870210280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406843 (or 406839 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 39.

The spelling of 1271870210280 in words is "one trillion, two hundred seventy-one billion, eight hundred seventy million, two hundred ten thousand, two hundred eighty".