4456320999973 has 2 divisors, whose sum is σ = 4456320999974. Its totient is φ = 4456320999972.

The previous prime is 4456320999943. The next prime is 4456321000031. The reversal of 4456320999973 is 3799990236544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2285109908964 + 2171211091009 = 1511658^2 + 1473503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4456320999973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4456320999943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228160499986 + 2228160499987.

It is an arithmetic number, because the mean of its divisors is an integer number (2228160499987).

Almost surely, 2^{4456320999973} is an apocalyptic number.

It is an amenable number.

4456320999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4456320999973 is an equidigital number, since it uses as much as digits as its factorization.

4456320999973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 396809280, while the sum is 70.

The spelling of 4456320999973 in words is "four trillion, four hundred fifty-six billion, three hundred twenty million, nine hundred ninety-nine thousand, nine hundred seventy-three".