4168626121 has 4 divisors (see below), whose sum is σ = 4547592144. Its totient is φ = 3789660100.

The previous prime is 4168626103. The next prime is 4168626139. The reversal of 4168626121 is 1216268614.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4168626103) and next prime (4168626139).

It is a cyclic number.

It is not a de Polignac number, because 4168626121 - 2⁵ = 4168626089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4168626181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189482995 + ... + 189483016.

It is an arithmetic number, because the mean of its divisors is an integer number (1136898036).

Almost surely, 2^4168626121 is an apocalyptic number.

It is an amenable number.

4168626121 is a deficient number, since it is larger than the sum of its proper divisors (378966023).

4168626121 is a wasteful number, since it uses less digits than its factorization.

4168626121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378966022.

The product of its digits is 27648, while the sum is 37.

The square root of 4168626121 is about 64564.8985207907. The cubic root of 4168626121 is about 1609.4011791266.

The spelling of 4168626121 in words is "four billion, one hundred sixty-eight million, six hundred twenty-six thousand, one hundred twenty-one".