28438607983 has 2 divisors, whose sum is σ = 28438607984. Its totient is φ = 28438607982.

The previous prime is 28438607971. The next prime is 28438607987. The reversal of 28438607983 is 38970683482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28438607983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28438607987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14219303991 + 14219303992.

It is an arithmetic number, because the mean of its divisors is an integer number (14219303992).

Almost surely, 2^28438607983 is an apocalyptic number.

28438607983 is a deficient number, since it is larger than the sum of its proper divisors (1).

28438607983 is an equidigital number, since it uses as much as digits as its factorization.

28438607983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 28438607983 in words is "twenty-eight billion, four hundred thirty-eight million, six hundred seven thousand, nine hundred eighty-three".