380218868534 has 4 divisors (see below), whose sum is σ = 570328302804. Its totient is φ = 190109434266.

The previous prime is 380218868527. The next prime is 380218868537. The reversal of 380218868534 is 435868812083.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 380218868534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380218868537) 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 as a sum of consecutive naturals, namely, 95054717132 + ... + 95054717135.

It is an arithmetic number, because the mean of its divisors is an integer number (142582075701).

Almost surely, 2^380218868534 is an apocalyptic number.

380218868534 is a deficient number, since it is larger than the sum of its proper divisors (190109434270).

380218868534 is a wasteful number, since it uses less digits than its factorization.

380218868534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190109434269.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 380218868534 in words is "three hundred eighty billion, two hundred eighteen million, eight hundred sixty-eight thousand, five hundred thirty-four".