1439901639597 has 16 divisors (see below), whose sum is σ = 1981891911680. Its totient is φ = 928925766000.

The previous prime is 1439901639541. The next prime is 1439901639629. The reversal of 1439901639597 is 7959361099341.

It is not a de Polignac number, because 1439901639597 - 2¹¹ = 1439901637549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439901639097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1724472 + ... + 2419422.

It is an arithmetic number, because the mean of its divisors is an integer number (123868244480).

Almost surely, 2^{1439901639597} is an apocalyptic number.

It is an amenable number.

1439901639597 is a deficient number, since it is larger than the sum of its proper divisors (541990272083).

1439901639597 is a wasteful number, since it uses less digits than its factorization.

1439901639597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717264.

The product of its (nonzero) digits is 49601160, while the sum is 66.

The spelling of 1439901639597 in words is "one trillion, four hundred thirty-nine billion, nine hundred one million, six hundred thirty-nine thousand, five hundred ninety-seven".