4464520420649 has 2 divisors, whose sum is σ = 4464520420650. Its totient is φ = 4464520420648.

The previous prime is 4464520420561. The next prime is 4464520420663. The reversal of 4464520420649 is 9460240254644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2841355239424 + 1623165181225 = 1685632^2 + 1274035^2 .

It is a cyclic number.

It is not a de Polignac number, because 4464520420649 - 2¹² = 4464520416553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4464520420597 and 4464520420606.

It is not a weakly prime, because it can be changed into another prime (4464540420649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2232260210324 + 2232260210325.

It is an arithmetic number, because the mean of its divisors is an integer number (2232260210325).

Almost surely, 2^{4464520420649} is an apocalyptic number.

It is an amenable number.

4464520420649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4464520420649 is an equidigital number, since it uses as much as digits as its factorization.

4464520420649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6635520, while the sum is 50.

The spelling of 4464520420649 in words is "four trillion, four hundred sixty-four billion, five hundred twenty million, four hundred twenty thousand, six hundred forty-nine".