17888842961 has 8 divisors (see below), whose sum is σ = 19704569664. Its totient is φ = 16104694320.

The previous prime is 17888842903. The next prime is 17888842999. The reversal of 17888842961 is 16924888871.

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

It is not a de Polignac number, because 17888842961 - 2²² = 17884648657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17888842894 and 17888842903.

It is not an unprimeable number, because it can be changed into a prime (17888442961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7893326 + ... + 7895591.

It is an arithmetic number, because the mean of its divisors is an integer number (2463071208).

Almost surely, 2^17888842961 is an apocalyptic number.

17888842961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

17888842961 is a deficient number, since it is larger than the sum of its proper divisors (1815726703).

17888842961 is a wasteful number, since it uses less digits than its factorization.

17888842961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15789031.

The product of its digits is 12386304, while the sum is 62.

The spelling of 17888842961 in words is "seventeen billion, eight hundred eighty-eight million, eight hundred forty-two thousand, nine hundred sixty-one".