38680135349 has 4 divisors (see below), whose sum is σ = 38688227136. Its totient is φ = 38672043564.

The previous prime is 38680135327. The next prime is 38680135357. The reversal of 38680135349 is 94353108683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38680135349 - 2¹² = 38680131253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38680135297 and 38680135306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38680135399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4038719 + ... + 4048284.

It is an arithmetic number, because the mean of its divisors is an integer number (9672056784).

Almost surely, 2^38680135349 is an apocalyptic number.

It is an amenable number.

38680135349 is a deficient number, since it is larger than the sum of its proper divisors (8091787).

38680135349 is an equidigital number, since it uses as much as digits as its factorization.

38680135349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091786.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 38680135349 in words is "thirty-eight billion, six hundred eighty million, one hundred thirty-five thousand, three hundred forty-nine".