217251872002 has 8 divisors (see below), whose sum is σ = 355503063312. Its totient is φ = 98750850900.

The previous prime is 217251871997. The next prime is 217251872017. The reversal of 217251872002 is 200278152712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4937542524 + ... + 4937542567.

It is an arithmetic number, because the mean of its divisors is an integer number (44437882914).

Almost surely, 2^217251872002 is an apocalyptic number.

217251872002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

217251872002 is a deficient number, since it is larger than the sum of its proper divisors (138251191310).

217251872002 is a wasteful number, since it uses less digits than its factorization.

217251872002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875085104.

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 217251872002 in words is "two hundred seventeen billion, two hundred fifty-one million, eight hundred seventy-two thousand, two".