17077705421 has 16 divisors (see below), whose sum is σ = 20125252224. Its totient is φ = 14188784064.

The previous prime is 17077705391. The next prime is 17077705427. The reversal of 17077705421 is 12450777071.

It is a de Polignac number, because none of the positive numbers 2^k-17077705421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17077705427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246506 + ... + 308091.

It is an arithmetic number, because the mean of its divisors is an integer number (1257828264).

Almost surely, 2^17077705421 is an apocalyptic number.

It is an amenable number.

17077705421 is a deficient number, since it is larger than the sum of its proper divisors (3047546803).

17077705421 is an equidigital number, since it uses as much as digits as its factorization.

17077705421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554740.

The product of its (nonzero) digits is 96040, while the sum is 41.

The spelling of 17077705421 in words is "seventeen billion, seventy-seven million, seven hundred five thousand, four hundred twenty-one".