642258900210 has 32 divisors (see below), whose sum is σ = 1541878591680. Its totient is φ = 171218236608.

The previous prime is 642258900203. The next prime is 642258900259. The reversal of 642258900210 is 12009852246.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3072340 + ... + 3274719.

It is an arithmetic number, because the mean of its divisors is an integer number (48183705990).

Almost surely, 2^642258900210 is an apocalyptic number.

642258900210 is an abundant number, since it is smaller than the sum of its proper divisors (899619691470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642258900210 is a wasteful number, since it uses less digits than its factorization.

642258900210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350442.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 642258900210 in words is "six hundred forty-two billion, two hundred fifty-eight million, nine hundred thousand, two hundred ten".