4915640497 has 2 divisors, whose sum is σ = 4915640498. Its totient is φ = 4915640496.

The previous prime is 4915640437. The next prime is 4915640501. The reversal of 4915640497 is 7940465194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3111854656 + 1803785841 = 55784^2 + 42471^2 .

It is a cyclic number.

It is not a de Polignac number, because 4915640497 - 2²³ = 4907251889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4915640497.

It is not a weakly prime, because it can be changed into another prime (4915640437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2457820248 + 2457820249.

It is an arithmetic number, because the mean of its divisors is an integer number (2457820249).

Almost surely, 2^4915640497 is an apocalyptic number.

It is an amenable number.

4915640497 is a deficient number, since it is larger than the sum of its proper divisors (1).

4915640497 is an equidigital number, since it uses as much as digits as its factorization.

4915640497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 4915640497 is about 70111.6288286045. The cubic root of 4915640497 is about 1700.3045010490.

The spelling of 4915640497 in words is "four billion, nine hundred fifteen million, six hundred forty thousand, four hundred ninety-seven".