4444729637 has 2 divisors, whose sum is σ = 4444729638. Its totient is φ = 4444729636.

The previous prime is 4444729613. The next prime is 4444729643. The reversal of 4444729637 is 7369274444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4413077761 + 31651876 = 66431^2 + 5626^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444729637 - 2¹⁴ = 4444713253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444729607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222364818 + 2222364819.

It is an arithmetic number, because the mean of its divisors is an integer number (2222364819).

Almost surely, 2^4444729637 is an apocalyptic number.

It is an amenable number.

4444729637 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444729637 is an equidigital number, since it uses as much as digits as its factorization.

4444729637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 50.

The square root of 4444729637 is about 66668.8055765213. The cubic root of 4444729637 is about 1644.1765494010.

The spelling of 4444729637 in words is "four billion, four hundred forty-four million, seven hundred twenty-nine thousand, six hundred thirty-seven".