1388017621082 has 8 divisors (see below), whose sum is σ = 2082067878996. Its totient is φ = 693994994752.

The previous prime is 1388017621063. The next prime is 1388017621097. The reversal of 1388017621082 is 2801267108831.

It can be written as a sum of positive squares in 2 ways, for example, as 1349804799721 + 38212821361 = 1161811^2 + 195481^2 .

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, 6781853 + ... + 6983520.

Almost surely, 2^{1388017621082} is an apocalyptic number.

1388017621082 is a deficient number, since it is larger than the sum of its proper divisors (694050257914).

1388017621082 is a wasteful number, since it uses less digits than its factorization.

1388017621082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13815792.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 1388017621082 in words is "one trillion, three hundred eighty-eight billion, seventeen million, six hundred twenty-one thousand, eighty-two".