4025630639 has 2 divisors, whose sum is σ = 4025630640. Its totient is φ = 4025630638.

The previous prime is 4025630611. The next prime is 4025630647. The reversal of 4025630639 is 9360365204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4025630639 - 2⁸ = 4025630383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4025630689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012815319 + 2012815320.

It is an arithmetic number, because the mean of its divisors is an integer number (2012815320).

Almost surely, 2^4025630639 is an apocalyptic number.

4025630639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025630639 is an equidigital number, since it uses as much as digits as its factorization.

4025630639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 4025630639 is about 63447.8576391670. The cubic root of 4025630639 is about 1590.7843445052.

The spelling of 4025630639 in words is "four billion, twenty-five million, six hundred thirty thousand, six hundred thirty-nine".