138796771579 has 8 divisors (see below), whose sum is σ = 146149969680. Its totient is φ = 131448384000.

The previous prime is 138796771573. The next prime is 138796771621. The reversal of 138796771579 is 975177697831.

138796771579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 138796771579 - 2¹³ = 138796763387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138796771573) 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, 1143322 + ... + 1258879.

It is an arithmetic number, because the mean of its divisors is an integer number (18268746210).

Almost surely, 2^138796771579 is an apocalyptic number.

138796771579 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

138796771579 is a deficient number, since it is larger than the sum of its proper divisors (7353198101).

138796771579 is a wasteful number, since it uses less digits than its factorization.

138796771579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405261.

The product of its digits is 140026320, while the sum is 70.

The spelling of 138796771579 in words is "one hundred thirty-eight billion, seven hundred ninety-six million, seven hundred seventy-one thousand, five hundred seventy-nine".