4938018251 has 2 divisors, whose sum is σ = 4938018252. Its totient is φ = 4938018250.

The previous prime is 4938018247. The next prime is 4938018257. The reversal of 4938018251 is 1528108394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4938018251 - 2² = 4938018247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4938018199 and 4938018208.

It is not a weakly prime, because it can be changed into another prime (4938018257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469009125 + 2469009126.

It is an arithmetic number, because the mean of its divisors is an integer number (2469009126).

Almost surely, 2^4938018251 is an apocalyptic number.

4938018251 is a deficient number, since it is larger than the sum of its proper divisors (1).

4938018251 is an equidigital number, since it uses as much as digits as its factorization.

4938018251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 4938018251 is about 70271.0342246363. The cubic root of 4938018251 is about 1702.8807271385.

The spelling of 4938018251 in words is "four billion, nine hundred thirty-eight million, eighteen thousand, two hundred fifty-one".