538178450379 has 4 divisors (see below), whose sum is σ = 717571267176. Its totient is φ = 358785633584.

The previous prime is 538178450377. The next prime is 538178450389. The reversal of 538178450379 is 973054871835.

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 538178450379 - 2¹ = 538178450377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538178450377) 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, 89696408394 + ... + 89696408399.

It is an arithmetic number, because the mean of its divisors is an integer number (179392816794).

Almost surely, 2^538178450379 is an apocalyptic number.

538178450379 is a deficient number, since it is larger than the sum of its proper divisors (179392816797).

538178450379 is a wasteful number, since it uses less digits than its factorization.

538178450379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179392816796.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 538178450379 in words is "five hundred thirty-eight billion, one hundred seventy-eight million, four hundred fifty thousand, three hundred seventy-nine".