1272727227660 has 384 divisors, whose sum is σ = 4466219433984. Its totient is φ = 264440816640.

The previous prime is 1272727227631. The next prime is 1272727227679. The reversal of 1272727227660 is 667227272721.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15327655 + ... + 15410465.

It is an arithmetic number, because the mean of its divisors is an integer number (11630779776).

Almost surely, 2^{1272727227660} is an apocalyptic number.

1272727227660 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 1272727227660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2233109716992).

1272727227660 is an abundant number, since it is smaller than the sum of its proper divisors (3193492206324).

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

1272727227660 is a wasteful number, since it uses less digits than its factorization.

1272727227660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82933 (or 82931 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 1272727227660 in words is "one trillion, two hundred seventy-two billion, seven hundred twenty-seven million, two hundred twenty-seven thousand, six hundred sixty".