1272734322726 has 32 divisors (see below), whose sum is σ = 2565819849600. Its totient is φ = 420857760960.

The previous prime is 1272734322719. The next prime is 1272734322749. The reversal of 1272734322726 is 6272234372721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443946 + ... + 1656066.

It is an arithmetic number, because the mean of its divisors is an integer number (80181870300).

Almost surely, 2^{1272734322726} is an apocalyptic number.

1272734322726 is an abundant number, since it is smaller than the sum of its proper divisors (1293085526874).

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

1272734322726 is a wasteful number, since it uses less digits than its factorization.

1272734322726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213524.

The product of its digits is 2370816, while the sum is 48.

The spelling of 1272734322726 in words is "one trillion, two hundred seventy-two billion, seven hundred thirty-four million, three hundred twenty-two thousand, seven hundred twenty-six".