4945407457 has 16 divisors (see below), whose sum is σ = 5660893440. Its totient is φ = 4290340608.

The previous prime is 4945407437. The next prime is 4945407461. The reversal of 4945407457 is 7547045494.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4945407457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4945407457.

It is not an unprimeable number, because it can be changed into a prime (4945407437) 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, 194953 + ... + 218854.

It is an arithmetic number, because the mean of its divisors is an integer number (353805840).

Almost surely, 2^4945407457 is an apocalyptic number.

It is an amenable number.

4945407457 is a deficient number, since it is larger than the sum of its proper divisors (715485983).

4945407457 is a wasteful number, since it uses less digits than its factorization.

4945407457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413880.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The square root of 4945407457 is about 70323.5910416981. The cubic root of 4945407457 is about 1703.7296956065.

The spelling of 4945407457 in words is "four billion, nine hundred forty-five million, four hundred seven thousand, four hundred fifty-seven".