138819573467 has 16 divisors (see below), whose sum is σ = 149570426880. Its totient is φ = 128464089600.

The previous prime is 138819573463. The next prime is 138819573499. The reversal of 138819573467 is 764375918831.

It is a happy number.

It is not a de Polignac number, because 138819573467 - 2² = 138819573463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138819573463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2668667 + ... + 2720187.

It is an arithmetic number, because the mean of its divisors is an integer number (9348151680).

Almost surely, 2^138819573467 is an apocalyptic number.

138819573467 is a deficient number, since it is larger than the sum of its proper divisors (10750853413).

138819573467 is a wasteful number, since it uses less digits than its factorization.

138819573467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55354.

The product of its digits is 30481920, while the sum is 62.

The spelling of 138819573467 in words is "one hundred thirty-eight billion, eight hundred nineteen million, five hundred seventy-three thousand, four hundred sixty-seven".