17155428707 has 4 divisors (see below), whose sum is σ = 17156406960. Its totient is φ = 17154450456.

The previous prime is 17155428683. The next prime is 17155428709. The reversal of 17155428707 is 70782455171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70782455171 = 389 ⋅181960039.

It is a cyclic number.

It is not a de Polignac number, because 17155428707 - 2²² = 17151234403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17155428709) 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 3 ways as a sum of consecutive naturals, for example, 462332 + ... + 498057.

It is an arithmetic number, because the mean of its divisors is an integer number (4289101740).

Almost surely, 2^17155428707 is an apocalyptic number.

17155428707 is a deficient number, since it is larger than the sum of its proper divisors (978253).

17155428707 is an equidigital number, since it uses as much as digits as its factorization.

17155428707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978252.

The product of its (nonzero) digits is 548800, while the sum is 47.

The spelling of 17155428707 in words is "seventeen billion, one hundred fifty-five million, four hundred twenty-eight thousand, seven hundred seven".