17699990401 has 4 divisors (see below), whose sum is σ = 17871835072. Its totient is φ = 17528145732.

The previous prime is 17699990339. The next prime is 17699990467. The reversal of 17699990401 is 10409999671.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17699990401 - 2⁹ = 17699989889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17699994401) 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, 85922181 + ... + 85922386.

It is an arithmetic number, because the mean of its divisors is an integer number (4467958768).

Almost surely, 2^17699990401 is an apocalyptic number.

It is an amenable number.

17699990401 is a deficient number, since it is larger than the sum of its proper divisors (171844671).

17699990401 is a wasteful number, since it uses less digits than its factorization.

17699990401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171844670.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The spelling of 17699990401 in words is "seventeen billion, six hundred ninety-nine million, nine hundred ninety thousand, four hundred one".