642817010 has 32 divisors (see below), whose sum is σ = 1265723712. Its totient is φ = 233110080.

The previous prime is 642817009. The next prime is 642817013. The reversal of 642817010 is 10718246.

642817010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (642817013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33197 + ... + 48863.

It is an arithmetic number, because the mean of its divisors is an integer number (39553866).

Almost surely, 2^642817010 is an apocalyptic number.

642817010 is a deficient number, since it is larger than the sum of its proper divisors (622906702).

642817010 is a wasteful number, since it uses less digits than its factorization.

642817010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 642817010 is about 25353.8361988871. The cubic root of 642817010 is about 863.0364137816.

The spelling of 642817010 in words is "six hundred forty-two million, eight hundred seventeen thousand, ten".