4945394544 has 40 divisors (see below), whose sum is σ = 13120893840. Its totient is φ = 1603911168.

The previous prime is 4945394527. The next prime is 4945394551. The reversal of 4945394544 is 4454935494.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390509 + ... + 1394060.

It is an arithmetic number, because the mean of its divisors is an integer number (328022346).

Almost surely, 2^4945394544 is an apocalyptic number.

It is an amenable number.

4945394544 is an abundant number, since it is smaller than the sum of its proper divisors (8175499296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4945394544 is a wasteful number, since it uses less digits than its factorization.

4945394544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784617 (or 2784611 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The square root of 4945394544 is about 70323.4992303426. The cubic root of 4945394544 is about 1703.7282127303.

The spelling of 4945394544 in words is "four billion, nine hundred forty-five million, three hundred ninety-four thousand, five hundred forty-four".