65400706769 has 2 divisors, whose sum is σ = 65400706770. Its totient is φ = 65400706768.

The previous prime is 65400706741. The next prime is 65400706799. The reversal of 65400706769 is 96760700456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52521180625 + 12879526144 = 229175^2 + 113488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65400706769 is a prime.

It is a super-2 number, since 2×65400706769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65400706729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32700353384 + 32700353385.

It is an arithmetic number, because the mean of its divisors is an integer number (32700353385).

Almost surely, 2^65400706769 is an apocalyptic number.

It is an amenable number.

65400706769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65400706769 is an equidigital number, since it uses as much as digits as its factorization.

65400706769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 65400706769 in words is "sixty-five billion, four hundred million, seven hundred six thousand, seven hundred sixty-nine".