1439987974656 has 160 divisors (see below), whose sum is σ = 4782817594368. Its totient is φ = 374022819840.

The previous prime is 1439987974651. The next prime is 1439987974693. The reversal of 1439987974656 is 6564797899341.

It is not an unprimeable number, because it can be changed into a prime (1439987974651) 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, 5969340 + ... + 6205883.

Almost surely, 2^{1439987974656} is an apocalyptic number.

1439987974656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1439987974656 is an abundant number, since it is smaller than the sum of its proper divisors (3342829619712).

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

1439987974656 is a wasteful number, since it uses less digits than its factorization.

1439987974656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12175262 (or 12175246 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 78.

The spelling of 1439987974656 in words is "one trillion, four hundred thirty-nine billion, nine hundred eighty-seven million, nine hundred seventy-four thousand, six hundred fifty-six".