138675233477 has 8 divisors (see below), whose sum is σ = 151287860640. Its totient is φ = 126063570960.

The previous prime is 138675233461. The next prime is 138675233479. The reversal of 138675233477 is 774332576831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138675233477 - 2⁴ = 138675233461 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 (138675233479) 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 7 ways as a sum of consecutive naturals, for example, 77774 + ... + 532352.

It is an arithmetic number, because the mean of its divisors is an integer number (18910982580).

Almost surely, 2^138675233477 is an apocalyptic number.

It is an amenable number.

138675233477 is a deficient number, since it is larger than the sum of its proper divisors (12612627163).

138675233477 is a wasteful number, since it uses less digits than its factorization.

138675233477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482323.

The product of its digits is 17781120, while the sum is 56.

The spelling of 138675233477 in words is "one hundred thirty-eight billion, six hundred seventy-five million, two hundred thirty-three thousand, four hundred seventy-seven".