1439264278272 has 144 divisors (see below), whose sum is σ = 4083192512000. Its totient is φ = 448750927872.

The previous prime is 1439264278229. The next prime is 1439264278279. The reversal of 1439264278272 is 2728724629341.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439264278279) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 528504 + ... + 1777032.

Almost surely, 2^{1439264278272} is an apocalyptic number.

1439264278272 is a gapful number since it is divisible by the number (12) 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 1439264278272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2041596256000).

1439264278272 is an abundant number, since it is smaller than the sum of its proper divisors (2643928233728).

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

1439264278272 is a wasteful number, since it uses less digits than its factorization.

1439264278272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248646 (or 1248632 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 57.

The spelling of 1439264278272 in words is "one trillion, four hundred thirty-nine billion, two hundred sixty-four million, two hundred seventy-eight thousand, two hundred seventy-two".