4545021615 has 32 divisors (see below), whose sum is σ = 7308734976. Its totient is φ = 2411813760.

The previous prime is 4545021563. The next prime is 4545021617. The reversal of 4545021615 is 5161205454.

It is not a de Polignac number, because 4545021615 - 2¹³ = 4545013423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545021617) 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 31 ways as a sum of consecutive naturals, for example, 4283185 + ... + 4284245.

It is an arithmetic number, because the mean of its divisors is an integer number (228397968).

Almost surely, 2^4545021615 is an apocalyptic number.

4545021615 is a deficient number, since it is larger than the sum of its proper divisors (2763713361).

4545021615 is a wasteful number, since it uses less digits than its factorization.

4545021615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 4545021615 is about 67416.7754716881. The cubic root of 4545021615 is about 1656.4512196205.

The spelling of 4545021615 in words is "four billion, five hundred forty-five million, twenty-one thousand, six hundred fifteen".