4129770644 has 12 divisors (see below), whose sum is σ = 7229648244. Its totient is φ = 2064156864.

The previous prime is 4129770643. The next prime is 4129770731. The reversal of 4129770644 is 4460779214.

4129770644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2067520900 + 2062249744 = 45470^2 + 45412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4129770595 and 4129770604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129770643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169259 + ... + 192114.

It is an arithmetic number, because the mean of its divisors is an integer number (602470687).

Almost surely, 2^4129770644 is an apocalyptic number.

It is an amenable number.

4129770644 is a deficient number, since it is larger than the sum of its proper divisors (3099877600).

4129770644 is a wasteful number, since it uses less digits than its factorization.

4129770644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364234 (or 364232 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 4129770644 is about 64263.2915745840. The cubic root of 4129770644 is about 1604.3851896108.

The spelling of 4129770644 in words is "four billion, one hundred twenty-nine million, seven hundred seventy thousand, six hundred forty-four".