1647145412272 has 10 divisors (see below), whose sum is σ = 3191344236308. Its totient is φ = 823572706128.

The previous prime is 1647145412261. The next prime is 1647145412273. The reversal of 1647145412272 is 2722145417461.

It is not an unprimeable number, because it can be changed into a prime (1647145412273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51473294118 + ... + 51473294149.

Almost surely, 2^{1647145412272} is an apocalyptic number.

It is an amenable number.

1647145412272 is a deficient number, since it is larger than the sum of its proper divisors (1544198824036).

1647145412272 is a wasteful number, since it uses less digits than its factorization.

1647145412272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102946588275 (or 102946588269 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The spelling of 1647145412272 in words is "one trillion, six hundred forty-seven billion, one hundred forty-five million, four hundred twelve thousand, two hundred seventy-two".