17044991957 has 8 divisors (see below), whose sum is σ = 19658707200. Its totient is φ = 14475955824.

The previous prime is 17044991921. The next prime is 17044991963. The reversal of 17044991957 is 75919944071.

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 17044991957 - 2¹⁰ = 17044990933 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 (17044991357) 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, 11168957 + ... + 11170482.

It is an arithmetic number, because the mean of its divisors is an integer number (2457338400).

Almost surely, 2^17044991957 is an apocalyptic number.

It is an amenable number.

17044991957 is a deficient number, since it is larger than the sum of its proper divisors (2613715243).

17044991957 is a wasteful number, since it uses less digits than its factorization.

17044991957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22339555.

The product of its (nonzero) digits is 2857680, while the sum is 56.

It can be divided in two parts, 17044 and 991957, that added together give a palindrome (1009001).

The spelling of 17044991957 in words is "seventeen billion, forty-four million, nine hundred ninety-one thousand, nine hundred fifty-seven".