28771630607 has 2 divisors, whose sum is σ = 28771630608. Its totient is φ = 28771630606.

The previous prime is 28771630583. The next prime is 28771630639. The reversal of 28771630607 is 70603617782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28771630607 - 2²⁸ = 28503195151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28771630687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14385815303 + 14385815304.

It is an arithmetic number, because the mean of its divisors is an integer number (14385815304).

Almost surely, 2^28771630607 is an apocalyptic number.

28771630607 is a deficient number, since it is larger than the sum of its proper divisors (1).

28771630607 is an equidigital number, since it uses as much as digits as its factorization.

28771630607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 28771630607 in words is "twenty-eight billion, seven hundred seventy-one million, six hundred thirty thousand, six hundred seven".