138895033477 has 16 divisors (see below), whose sum is σ = 152760608640. Its totient is φ = 125854560832.

The previous prime is 138895033447. The next prime is 138895033489. The reversal of 138895033477 is 774330598831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 138895033477 - 2¹⁵ = 138895000709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138895033447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929163 + ... + 1999864.

It is an arithmetic number, because the mean of its divisors is an integer number (9547538040).

Almost surely, 2^138895033477 is an apocalyptic number.

It is an amenable number.

138895033477 is a deficient number, since it is larger than the sum of its proper divisors (13865575163).

138895033477 is a wasteful number, since it uses less digits than its factorization.

138895033477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929132.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 138895033477 in words is "one hundred thirty-eight billion, eight hundred ninety-five million, thirty-three thousand, four hundred seventy-seven".