4945394545 has 16 divisors (see below), whose sum is σ = 7303968000. Its totient is φ = 3130271424.

The previous prime is 4945394527. The next prime is 4945394551. The reversal of 4945394545 is 5454935494.

It is a happy number.

It is not a de Polignac number, because 4945394545 - 2²³ = 4937005937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4945394492 and 4945394501.

It is an unprimeable number.

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, 5434045 + ... + 5434954.

It is an arithmetic number, because the mean of its divisors is an integer number (456498000).

Almost surely, 2^4945394545 is an apocalyptic number.

It is an amenable number.

4945394545 is a deficient number, since it is larger than the sum of its proper divisors (2358573455).

4945394545 is a wasteful number, since it uses less digits than its factorization.

4945394545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10869024.

The product of its digits is 7776000, while the sum is 52.

The square root of 4945394545 is about 70323.4992374526. The cubic root of 4945394545 is about 1703.7282128451.

The spelling of 4945394545 in words is "four billion, nine hundred forty-five million, three hundred ninety-four thousand, five hundred forty-five".