323616649473 has 36 divisors (see below), whose sum is σ = 508739491260. Its totient is φ = 198137616768.

The previous prime is 323616649439. The next prime is 323616649487. The reversal of 323616649473 is 374946616323.

It is a happy number.

323616649473 is a `hidden beast` number, since 3 + 2 + 3 + 6 + 166 + 4 + 9 + 473 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 615387249 + 323001262224 = 24807^2 + 568332^2 .

It is not a de Polignac number, because 323616649473 - 2⁶ = 323616649409 is a prime.

It is a super-2 number, since 2×323616649473² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323616649073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240378 + ... + 839651.

It is an arithmetic number, because the mean of its divisors is an integer number (14131652535).

Almost surely, 2^323616649473 is an apocalyptic number.

It is an amenable number.

323616649473 is a deficient number, since it is larger than the sum of its proper divisors (185122841787).

323616649473 is a wasteful number, since it uses less digits than its factorization.

323616649473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080258 (or 1080242 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 54.

The spelling of 323616649473 in words is "three hundred twenty-three billion, six hundred sixteen million, six hundred forty-nine thousand, four hundred seventy-three".