34228123721 has 16 divisors (see below), whose sum is σ = 37424220288. Its totient is φ = 31046198400.

The previous prime is 34228123673. The next prime is 34228123729. The reversal of 34228123721 is 12732182243.

It is a cyclic number.

It is not a de Polignac number, because 34228123721 - 2¹⁴ = 34228107337 is a prime.

It is a super-4 number, since 4×34228123721⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34228123729) by changing a digit.

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, 13575941 + ... + 13578461.

It is an arithmetic number, because the mean of its divisors is an integer number (2339013768).

Almost surely, 2^34228123721 is an apocalyptic number.

It is an amenable number.

34228123721 is a deficient number, since it is larger than the sum of its proper divisors (3196096567).

34228123721 is a wasteful number, since it uses less digits than its factorization.

34228123721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832.

The product of its digits is 32256, while the sum is 35.

The spelling of 34228123721 in words is "thirty-four billion, two hundred twenty-eight million, one hundred twenty-three thousand, seven hundred twenty-one".