4630656391 has 2 divisors, whose sum is σ = 4630656392. Its totient is φ = 4630656390.

The previous prime is 4630656379. The next prime is 4630656413. The reversal of 4630656391 is 1936560364.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4630656391 - 2¹⁵ = 4630623623 is a prime.

It is a super-2 number, since 2×4630656391² = 42885957223018289762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4630656361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2315328195 + 2315328196.

It is an arithmetic number, because the mean of its divisors is an integer number (2315328196).

Almost surely, 2^4630656391 is an apocalyptic number.

4630656391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4630656391 is an equidigital number, since it uses as much as digits as its factorization.

4630656391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 4630656391 is about 68048.9264500183. The cubic root of 4630656391 is about 1666.7898689236.

The spelling of 4630656391 in words is "four billion, six hundred thirty million, six hundred fifty-six thousand, three hundred ninety-one".