1008921617339 has 4 divisors (see below), whose sum is σ = 1019322871224. Its totient is φ = 998520363456.

The previous prime is 1008921617321. The next prime is 1008921617351. The reversal of 1008921617339 is 9337161298001.

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 1008921617339 - 2¹² = 1008921613243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008921617359) 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, 5200626797 + ... + 5200626990.

It is an arithmetic number, because the mean of its divisors is an integer number (254830717806).

Almost surely, 2^{1008921617339} is an apocalyptic number.

1008921617339 is a deficient number, since it is larger than the sum of its proper divisors (10401253885).

1008921617339 is an equidigital number, since it uses as much as digits as its factorization.

1008921617339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10401253884.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 1008921617339 in words is "one trillion, eight billion, nine hundred twenty-one million, six hundred seventeen thousand, three hundred thirty-nine".