1438979082368 has 16 divisors (see below), whose sum is σ = 2866716140910. Its totient is φ = 719489541120.

The previous prime is 1438979082337. The next prime is 1438979082371. The reversal of 1438979082368 is 8632809798341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1437907960384 + 1071121984 = 1199128^2 + 32728^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1438979082298 and 1438979082307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621011913 + ... + 5621012168.

Almost surely, 2^{1438979082368} is an apocalyptic number.

It is an amenable number.

1438979082368 is a deficient number, since it is larger than the sum of its proper divisors (1427737058542).

1438979082368 is an equidigital number, since it uses as much as digits as its factorization.

1438979082368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11242024095 (or 11242024083 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 68.

The spelling of 1438979082368 in words is "one trillion, four hundred thirty-eight billion, nine hundred seventy-nine million, eighty-two thousand, three hundred sixty-eight".