4890214645 has 16 divisors (see below), whose sum is σ = 6218408880. Its totient is φ = 3679105024.

The previous prime is 4890214643. The next prime is 4890214711. The reversal of 4890214645 is 5464120984.

It can be written as a sum of positive squares in 8 ways, for example, as 969325956 + 3920888689 = 31134^2 + 62617^2 .

It is a cyclic number.

It is not a de Polignac number, because 4890214645 - 2¹ = 4890214643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4890214643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87249 + ... + 131881.

It is an arithmetic number, because the mean of its divisors is an integer number (388650555).

Almost surely, 2^4890214645 is an apocalyptic number.

It is an amenable number.

4890214645 is a deficient number, since it is larger than the sum of its proper divisors (1328194235).

4890214645 is a wasteful number, since it uses less digits than its factorization.

4890214645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45944.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 4890214645 is about 69930.0696767850. The cubic root of 4890214645 is about 1697.3678580811.

The spelling of 4890214645 in words is "four billion, eight hundred ninety million, two hundred fourteen thousand, six hundred forty-five".