4666729461621 has 16 divisors (see below), whose sum is σ = 6360555174720. Its totient is φ = 3042574801920.

The previous prime is 4666729461601. The next prime is 4666729461659. The reversal of 4666729461621 is 1261649276664.

It is not a de Polignac number, because 4666729461621 - 2¹³ = 4666729453429 is a prime.

It is a super-2 number, since 2×4666729461621² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4666729461601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68270770 + ... + 68339091.

It is an arithmetic number, because the mean of its divisors is an integer number (397534698420).

Almost surely, 2^{4666729461621} is an apocalyptic number.

It is an amenable number.

4666729461621 is a deficient number, since it is larger than the sum of its proper divisors (1693825713099).

4666729461621 is a wasteful number, since it uses less digits than its factorization.

4666729461621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136610116.

The product of its digits is 31352832, while the sum is 60.

The spelling of 4666729461621 in words is "four trillion, six hundred sixty-six billion, seven hundred twenty-nine million, four hundred sixty-one thousand, six hundred twenty-one".