4651721222126 has 8 divisors (see below), whose sum is σ = 7611907454424. Its totient is φ = 2114418737320.

The previous prime is 4651721222087. The next prime is 4651721222131. The reversal of 4651721222126 is 6212221271564.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105720936845 + ... + 105720936888.

It is an arithmetic number, because the mean of its divisors is an integer number (951488431803).

Almost surely, 2^{4651721222126} is an apocalyptic number.

4651721222126 is a deficient number, since it is larger than the sum of its proper divisors (2960186232298).

4651721222126 is a wasteful number, since it uses less digits than its factorization.

4651721222126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211441873746.

The product of its digits is 161280, while the sum is 41.

The spelling of 4651721222126 in words is "four trillion, six hundred fifty-one billion, seven hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-six".