4978928137 has 2 divisors, whose sum is σ = 4978928138. Its totient is φ = 4978928136.

The previous prime is 4978928113. The next prime is 4978928183. The reversal of 4978928137 is 7318298794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4813445641 + 165482496 = 69379^2 + 12864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4978928137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4978928107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489464068 + 2489464069.

It is an arithmetic number, because the mean of its divisors is an integer number (2489464069).

Almost surely, 2^4978928137 is an apocalyptic number.

It is an amenable number.

4978928137 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978928137 is an equidigital number, since it uses as much as digits as its factorization.

4978928137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 4978928137 is about 70561.5202288046. The cubic root of 4978928137 is about 1707.5704056310.

The spelling of 4978928137 in words is "four billion, nine hundred seventy-eight million, nine hundred twenty-eight thousand, one hundred thirty-seven".