1272750470272 has 16 divisors (see below), whose sum is σ = 2535557577750. Its totient is φ = 636375235072.

The previous prime is 1272750470263. The next prime is 1272750470323. The reversal of 1272750470272 is 2720740572721.

It can be written as a sum of positive squares in only one way, i.e., 861377034816 + 411373435456 = 928104^2 + 641384^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971681397 + ... + 4971681652.

Almost surely, 2^{1272750470272} is an apocalyptic number.

It is an amenable number.

1272750470272 is a deficient number, since it is larger than the sum of its proper divisors (1262807107478).

1272750470272 is an frugal number, since it uses more digits than its factorization.

1272750470272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943363063 (or 9943363051 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 46.

The spelling of 1272750470272 in words is "one trillion, two hundred seventy-two billion, seven hundred fifty million, four hundred seventy thousand, two hundred seventy-two".