438681330002 has 4 divisors (see below), whose sum is σ = 658021995006. Its totient is φ = 219340665000.

The previous prime is 438681329971. The next prime is 438681330013. The reversal of 438681330002 is 200033186834.

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

It can be written as a sum of positive squares in only one way, i.e., 378322176241 + 60359153761 = 615079^2 + 245681^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109670332499 + ... + 109670332502.

Almost surely, 2^438681330002 is an apocalyptic number.

438681330002 is a deficient number, since it is larger than the sum of its proper divisors (219340665004).

438681330002 is a wasteful number, since it uses less digits than its factorization.

438681330002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219340665003.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 438681330002 in words is "four hundred thirty-eight billion, six hundred eighty-one million, three hundred thirty thousand, two".