17941959807 has 16 divisors (see below), whose sum is σ = 25767979008. Its totient is φ = 11072175840.

The previous prime is 17941959803. The next prime is 17941959809. The reversal of 17941959807 is 70895914971.

It is not a de Polignac number, because 17941959807 - 2² = 17941959803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17941959803) 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 15 ways as a sum of consecutive naturals, for example, 4191868 + ... + 4196145.

It is an arithmetic number, because the mean of its divisors is an integer number (1610498688).

Almost surely, 2^17941959807 is an apocalyptic number.

17941959807 is a deficient number, since it is larger than the sum of its proper divisors (7826019201).

17941959807 is a wasteful number, since it uses less digits than its factorization.

17941959807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8388070.

The product of its (nonzero) digits is 5715360, while the sum is 60.

The spelling of 17941959807 in words is "seventeen billion, nine hundred forty-one million, nine hundred fifty-nine thousand, eight hundred seven".