65987848123 has 2 divisors, whose sum is σ = 65987848124. Its totient is φ = 65987848122.

The previous prime is 65987848111. The next prime is 65987848163. The reversal of 65987848123 is 32184878956.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65987848123 is a prime.

It is a super-2 number, since 2×65987848123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65987848163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32993924061 + 32993924062.

It is an arithmetic number, because the mean of its divisors is an integer number (32993924062).

Almost surely, 2^65987848123 is an apocalyptic number.

65987848123 is a deficient number, since it is larger than the sum of its proper divisors (1).

65987848123 is an equidigital number, since it uses as much as digits as its factorization.

65987848123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 61.

The spelling of 65987848123 in words is "sixty-five billion, nine hundred eighty-seven million, eight hundred forty-eight thousand, one hundred twenty-three".