4640434002173 has 4 divisors (see below), whose sum is σ = 4640448525660. Its totient is φ = 4640419478688.

The previous prime is 4640434002161. The next prime is 4640434002179. The reversal of 4640434002173 is 3712004340464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3648302462809 + 992131539364 = 1910053^2 + 996058^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640434002173 - 2⁶ = 4640434002109 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 (4640434002179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6771440 + ... + 7425177.

It is an arithmetic number, because the mean of its divisors is an integer number (1160112131415).

Almost surely, 2^{4640434002173} is an apocalyptic number.

It is an amenable number.

4640434002173 is a deficient number, since it is larger than the sum of its proper divisors (14523487).

4640434002173 is a wasteful number, since it uses less digits than its factorization.

4640434002173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14523486.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 4640434002173 in words is "four trillion, six hundred forty billion, four hundred thirty-four million, two thousand, one hundred seventy-three".