4545778028 has 12 divisors (see below), whose sum is σ = 8678303592. Its totient is φ = 2066262720.

The previous prime is 4545778009. The next prime is 4545778037. The reversal of 4545778028 is 8208775454.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51656525 + ... + 51656612.

It is an arithmetic number, because the mean of its divisors is an integer number (723191966).

Almost surely, 2^4545778028 is an apocalyptic number.

It is an amenable number.

4545778028 is a deficient number, since it is larger than the sum of its proper divisors (4132525564).

4545778028 is a wasteful number, since it uses less digits than its factorization.

4545778028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103313152 (or 103313150 counting only the distinct ones).

The product of its (nonzero) digits is 2508800, while the sum is 50.

The square root of 4545778028 is about 67422.3852144078. The cubic root of 4545778028 is about 1656.5431070995.

The spelling of 4545778028 in words is "four billion, five hundred forty-five million, seven hundred seventy-eight thousand, twenty-eight".