17804747145 has 16 divisors (see below), whose sum is σ = 29986943040. Its totient is φ = 8996082624.

The previous prime is 17804747137. The next prime is 17804747159. The reversal of 17804747145 is 54174740871.

It is not a de Polignac number, because 17804747145 - 2³ = 17804747137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17804747094 and 17804747103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31236114 + ... + 31236683.

It is an arithmetic number, because the mean of its divisors is an integer number (1874183940).

Almost surely, 2^17804747145 is an apocalyptic number.

17804747145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

17804747145 is a deficient number, since it is larger than the sum of its proper divisors (12182195895).

17804747145 is a wasteful number, since it uses less digits than its factorization.

17804747145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62472824.

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 17804747145 in words is "seventeen billion, eight hundred four million, seven hundred forty-seven thousand, one hundred forty-five".