4477494947749 has 2 divisors, whose sum is σ = 4477494947750. Its totient is φ = 4477494947748.

The previous prime is 4477494947719. The next prime is 4477494947759. The reversal of 4477494947749 is 9477494947744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3539357417124 + 938137530625 = 1881318^2 + 968575^2 .

It is a cyclic number.

It is not a de Polignac number, because 4477494947749 - 2³¹ = 4475347464101 is a prime.

It is a super-2 number, since 2×4477494947749² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4477494947719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2238747473874 + 2238747473875.

It is an arithmetic number, because the mean of its divisors is an integer number (2238747473875).

Almost surely, 2^{4477494947749} is an apocalyptic number.

It is an amenable number.

4477494947749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4477494947749 is an equidigital number, since it uses as much as digits as its factorization.

4477494947749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7169347584, while the sum is 79.

The spelling of 4477494947749 in words is "four trillion, four hundred seventy-seven billion, four hundred ninety-four million, nine hundred forty-seven thousand, seven hundred forty-nine".