138050470385 has 8 divisors (see below), whose sum is σ = 175405303656. Its totient is φ = 103943883520.

The previous prime is 138050470343. The next prime is 138050470417. The reversal of 138050470385 is 583074050831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21984882529 + 116065587856 = 148273^2 + 340684^2 .

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

It is not a de Polignac number, because 138050470385 - 2³⁶ = 69330993649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812061506 + ... + 812061675.

It is an arithmetic number, because the mean of its divisors is an integer number (21925662957).

Almost surely, 2^138050470385 is an apocalyptic number.

It is an amenable number.

138050470385 is a deficient number, since it is larger than the sum of its proper divisors (37354833271).

138050470385 is a wasteful number, since it uses less digits than its factorization.

138050470385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624123203.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 138050470385 in words is "one hundred thirty-eight billion, fifty million, four hundred seventy thousand, three hundred eighty-five".