4123894105 has 8 divisors (see below), whose sum is σ = 5119317000. Its totient is φ = 3185352576.

The previous prime is 4123894079. The next prime is 4123894109. The reversal of 4123894105 is 5014983214.

It can be written as a sum of positive squares in 4 ways, for example, as 208138329 + 3915755776 = 14427^2 + 62576^2 .

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

It is not a de Polignac number, because 4123894105 - 2²³ = 4115505497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4123894109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14220180 + ... + 14220469.

It is an arithmetic number, because the mean of its divisors is an integer number (639914625).

Almost surely, 2^4123894105 is an apocalyptic number.

It is an amenable number.

4123894105 is a deficient number, since it is larger than the sum of its proper divisors (995422895).

4123894105 is a wasteful number, since it uses less digits than its factorization.

4123894105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28440683.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 4123894105 is about 64217.5529353151. The cubic root of 4123894105 is about 1603.6238311304.

The spelling of 4123894105 in words is "four billion, one hundred twenty-three million, eight hundred ninety-four thousand, one hundred five".