17111121949 has 8 divisors (see below), whose sum is σ = 17320677120. Its totient is φ = 16902354000.

The previous prime is 17111121871. The next prime is 17111121961. The reversal of 17111121949 is 94912111171.

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

It is a cyclic number.

It is not a de Polignac number, because 17111121949 - 2¹⁷ = 17110990877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17111151949) 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 in 7 ways as a sum of consecutive naturals, for example, 153009 + ... + 240070.

It is an arithmetic number, because the mean of its divisors is an integer number (2165084640).

Almost surely, 2^17111121949 is an apocalyptic number.

It is an amenable number.

17111121949 is a deficient number, since it is larger than the sum of its proper divisors (209555171).

17111121949 is a wasteful number, since it uses less digits than its factorization.

17111121949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393611.

The product of its digits is 4536, while the sum is 37.

The spelling of 17111121949 in words is "seventeen billion, one hundred eleven million, one hundred twenty-one thousand, nine hundred forty-nine".