464504639173 has 4 divisors (see below), whose sum is σ = 464648853708. Its totient is φ = 464360424640.

The previous prime is 464504639143. The next prime is 464504639293. The reversal of 464504639173 is 371936405464.

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 432270745729 + 32233893444 = 657473^2 + 179538^2 .

It is a cyclic number.

It is not a de Polignac number, because 464504639173 - 2⁵ = 464504639141 is a prime.

It is a super-2 number, since 2×464504639173² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 464504639173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464504639143) 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, 72102436 + ... + 72108877.

It is an arithmetic number, because the mean of its divisors is an integer number (116162213427).

Almost surely, 2^464504639173 is an apocalyptic number.

It is an amenable number.

464504639173 is a deficient number, since it is larger than the sum of its proper divisors (144214535).

464504639173 is a wasteful number, since it uses less digits than its factorization.

464504639173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144214534.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 464504639173 in words is "four hundred sixty-four billion, five hundred four million, six hundred thirty-nine thousand, one hundred seventy-three".