4919728757 has 4 divisors (see below), whose sum is σ = 4919869740. Its totient is φ = 4919587776.

The previous prime is 4919728699. The next prime is 4919728777. The reversal of 4919728757 is 7578279194.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7578279194 = 2 ⋅3789139597.

It can be written as a sum of positive squares in 2 ways, for example, as 3411260836 + 1508467921 = 58406^2 + 38839^2 .

It is a cyclic number.

It is not a de Polignac number, because 4919728757 - 2¹⁴ = 4919712373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4919728696 and 4919728705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4919728777) 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 3 ways as a sum of consecutive naturals, for example, 24719 + ... + 102227.

It is an arithmetic number, because the mean of its divisors is an integer number (1229967435).

Almost surely, 2^4919728757 is an apocalyptic number.

It is an amenable number.

4919728757 is a deficient number, since it is larger than the sum of its proper divisors (140983).

4919728757 is an equidigital number, since it uses as much as digits as its factorization.

4919728757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140982.

The product of its digits is 8890560, while the sum is 59.

The square root of 4919728757 is about 70140.7781322677. The cubic root of 4919728757 is about 1700.7757424998.

The spelling of 4919728757 in words is "four billion, nine hundred nineteen million, seven hundred twenty-eight thousand, seven hundred fifty-seven".