1272485473682 has 4 divisors (see below), whose sum is σ = 1908728210526. Its totient is φ = 636242736840.

The previous prime is 1272485473639. The next prime is 1272485473703. The reversal of 1272485473682 is 2863745842721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1244382639361 + 28102834321 = 1115519^2 + 167639^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318121368419 + ... + 318121368422.

Almost surely, 2^{1272485473682} is an apocalyptic number.

1272485473682 is a deficient number, since it is larger than the sum of its proper divisors (636242736844).

1272485473682 is an equidigital number, since it uses as much as digits as its factorization.

1272485473682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636242736843.

The product of its digits is 36126720, while the sum is 59.

The spelling of 1272485473682 in words is "one trillion, two hundred seventy-two billion, four hundred eighty-five million, four hundred seventy-three thousand, six hundred eighty-two".