2630391847 has 2 divisors, whose sum is σ = 2630391848. Its totient is φ = 2630391846.

The previous prime is 2630391833. The next prime is 2630391857. The reversal of 2630391847 is 7481930362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2630391847 - 2⁷ = 2630391719 is a prime.

It is a super-2 number, since 2×2630391847² = 13837922537528142818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2630391857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315195923 + 1315195924.

It is an arithmetic number, because the mean of its divisors is an integer number (1315195924).

Almost surely, 2^2630391847 is an apocalyptic number.

2630391847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630391847 is an equidigital number, since it uses as much as digits as its factorization.

2630391847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 2630391847 is about 51287.3458759566. The cubic root of 2630391847 is about 1380.4059309571.

The spelling of 2630391847 in words is "two billion, six hundred thirty million, three hundred ninety-one thousand, eight hundred forty-seven".