17879883841 has 4 divisors (see below), whose sum is σ = 18931641732. Its totient is φ = 16828125952.

The previous prime is 17879883817. The next prime is 17879883883. The reversal of 17879883841 is 14838897871.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14838897871 = 7 ⋅2119842553.

It can be written as a sum of positive squares in 2 ways, for example, as 16635840400 + 1244043441 = 128980^2 + 35271^2 .

It is a cyclic number.

It is not a de Polignac number, because 17879883841 - 2²³ = 17871495233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17879880841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525878920 + ... + 525878953.

It is an arithmetic number, because the mean of its divisors is an integer number (4732910433).

Almost surely, 2^17879883841 is an apocalyptic number.

It is an amenable number.

17879883841 is a deficient number, since it is larger than the sum of its proper divisors (1051757891).

17879883841 is a wasteful number, since it uses less digits than its factorization.

17879883841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051757890.

The product of its digits is 21676032, while the sum is 64.

The spelling of 17879883841 in words is "seventeen billion, eight hundred seventy-nine million, eight hundred eighty-three thousand, eight hundred forty-one".