4454773021 has 2 divisors, whose sum is σ = 4454773022. Its totient is φ = 4454773020.

The previous prime is 4454772997. The next prime is 4454773033. The reversal of 4454773021 is 1203774544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2412184996 + 2042588025 = 49114^2 + 45195^2 .

It is a cyclic number.

It is not a de Polignac number, because 4454773021 - 2⁵ = 4454772989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4454773061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2227386510 + 2227386511.

It is an arithmetic number, because the mean of its divisors is an integer number (2227386511).

Almost surely, 2^4454773021 is an apocalyptic number.

It is an amenable number.

4454773021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4454773021 is an equidigital number, since it uses as much as digits as its factorization.

4454773021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 4454773021 is about 66744.0860376408. The cubic root of 4454773021 is about 1645.4140205659.

The spelling of 4454773021 in words is "four billion, four hundred fifty-four million, seven hundred seventy-three thousand, twenty-one".