4200644061 has 6 divisors (see below), whose sum is σ = 6067596990. Its totient is φ = 2800429368.

The previous prime is 4200644047. The next prime is 4200644069. The reversal of 4200644061 is 1604460024.

It can be written as a sum of positive squares in only one way, i.e., 3969756036 + 230888025 = 63006^2 + 15195^2 .

It is not a de Polignac number, because 4200644061 - 2⁵ = 4200644029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200644069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 233369106 + ... + 233369123.

It is an arithmetic number, because the mean of its divisors is an integer number (1011266165).

Almost surely, 2^4200644061 is an apocalyptic number.

It is an amenable number.

4200644061 is a deficient number, since it is larger than the sum of its proper divisors (1866952929).

4200644061 is a wasteful number, since it uses less digits than its factorization.

4200644061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466738235 (or 466738232 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4200644061 is about 64812.3758320894. The cubic root of 4200644061 is about 1613.5111137511.

The spelling of 4200644061 in words is "four billion, two hundred million, six hundred forty-four thousand, sixty-one".