1439985629977 has 4 divisors (see below), whose sum is σ = 1440077840080. Its totient is φ = 1439893419876.

The previous prime is 1439985629923. The next prime is 1439985629993. The reversal of 1439985629977 is 7799265899341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1439985629977 is a prime.

It is a super-2 number, since 2×1439985629977² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1439985629897 and 1439985629906.

It is not an unprimeable number, because it can be changed into a prime (1439985629077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46081623 + ... + 46112860.

It is an arithmetic number, because the mean of its divisors is an integer number (360019460020).

Almost surely, 2^{1439985629977} is an apocalyptic number.

It is an amenable number.

1439985629977 is a deficient number, since it is larger than the sum of its proper divisors (92210103).

1439985629977 is an equidigital number, since it uses as much as digits as its factorization.

1439985629977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92210102.

The product of its digits is 1851776640, while the sum is 79.

The spelling of 1439985629977 in words is "one trillion, four hundred thirty-nine billion, nine hundred eighty-five million, six hundred twenty-nine thousand, nine hundred seventy-seven".