1438475879648 has 48 divisors (see below), whose sum is σ = 2853316730880. Its totient is φ = 713841187200.

The previous prime is 1438475879641. The next prime is 1438475879653. The reversal of 1438475879648 is 8469785748341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438475879641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415113 + ... + 2951223.

It is an arithmetic number, because the mean of its divisors is an integer number (59444098560).

Almost surely, 2^{1438475879648} is an apocalyptic number.

It is an amenable number.

1438475879648 is a deficient number, since it is larger than the sum of its proper divisors (1414840851232).

1438475879648 is a wasteful number, since it uses less digits than its factorization.

1438475879648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536751 (or 536743 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 74.

The spelling of 1438475879648 in words is "one trillion, four hundred thirty-eight billion, four hundred seventy-five million, eight hundred seventy-nine thousand, six hundred forty-eight".