738540382171 has 4 divisors (see below), whose sum is σ = 744178095144. Its totient is φ = 732902669200.

The previous prime is 738540382121. The next prime is 738540382213. The reversal of 738540382171 is 171283045837.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 738540382171 - 2⁷ = 738540382043 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738540382121) 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, 2818856290 + ... + 2818856551.

It is an arithmetic number, because the mean of its divisors is an integer number (186044523786).

Almost surely, 2^738540382171 is an apocalyptic number.

738540382171 is a deficient number, since it is larger than the sum of its proper divisors (5637712973).

738540382171 is a wasteful number, since it uses less digits than its factorization.

738540382171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637712972.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 738540382171 in words is "seven hundred thirty-eight billion, five hundred forty million, three hundred eighty-two thousand, one hundred seventy-one".