27784628418338 has 8 divisors (see below), whose sum is σ = 45465755593680. Its totient is φ = 12629376553780.

The previous prime is 27784628418317. The next prime is 27784628418341. The reversal of 27784628418338 is 83381482648772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631468827668 + ... + 631468827711.

It is an arithmetic number, because the mean of its divisors is an integer number (5683219449210).

Almost surely, 2^{27784628418338} is an apocalyptic number.

27784628418338 is a deficient number, since it is larger than the sum of its proper divisors (17681127175342).

27784628418338 is a wasteful number, since it uses less digits than its factorization.

27784628418338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262937655392.

The product of its digits is 693633024, while the sum is 71.

The spelling of 27784628418338 in words is "twenty-seven trillion, seven hundred eighty-four billion, six hundred twenty-eight million, four hundred eighteen thousand, three hundred thirty-eight".