4282121605 has 8 divisors (see below), whose sum is σ = 5304305664. Its totient is φ = 3315190800.

The previous prime is 4282121603. The next prime is 4282121659. The reversal of 4282121605 is 5061212824.

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

It is not a de Polignac number, because 4282121605 - 2¹ = 4282121603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4282121603) 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 7 ways as a sum of consecutive naturals, for example, 13813141 + ... + 13813450.

It is an arithmetic number, because the mean of its divisors is an integer number (663038208).

Almost surely, 2^4282121605 is an apocalyptic number.

It is an amenable number.

4282121605 is a deficient number, since it is larger than the sum of its proper divisors (1022184059).

4282121605 is a wasteful number, since it uses less digits than its factorization.

4282121605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626627.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 4282121605 is about 65437.9217655940. The cubic root of 4282121605 is about 1623.8765068893.

The spelling of 4282121605 in words is "four billion, two hundred eighty-two million, one hundred twenty-one thousand, six hundred five".