1439995479769 has 36 divisors (see below), whose sum is σ = 1921586562112. Its totient is φ = 1056069843840.

The previous prime is 1439995479751. The next prime is 1439995479779. The reversal of 1439995479769 is 9679745999341.

It is not a de Polignac number, because 1439995479769 - 2⁹ = 1439995479257 is a prime.

It is a super-2 number, since 2×1439995479769² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1439995479692 and 1439995479701.

It is not an unprimeable number, because it can be changed into a prime (1439995479739) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2696589 + ... + 3186154.

Almost surely, 2^{1439995479769} is an apocalyptic number.

It is an amenable number.

1439995479769 is a deficient number, since it is larger than the sum of its proper divisors (481591082343).

1439995479769 is a wasteful number, since it uses less digits than its factorization.

1439995479769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882806 (or 5882778 counting only the distinct ones).

The product of its digits is 4166497440, while the sum is 82.

The spelling of 1439995479769 in words is "one trillion, four hundred thirty-nine billion, nine hundred ninety-five million, four hundred seventy-nine thousand, seven hundred sixty-nine".