65768768485 has 24 divisors (see below), whose sum is σ = 92165149080. Its totient is φ = 44923060224.

The previous prime is 65768768467. The next prime is 65768768491. The reversal of 65768768485 is 58486786756.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30348775681 + 35419992804 = 174209^2 + 188202^2 .

It is not a de Polignac number, because 65768768485 - 2¹⁷ = 65768637413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 459300 + ... + 585229.

It is an arithmetic number, because the mean of its divisors is an integer number (3840214545).

Almost surely, 2^65768768485 is an apocalyptic number.

It is an amenable number.

65768768485 is a deficient number, since it is larger than the sum of its proper divisors (26396380595).

65768768485 is a wasteful number, since it uses less digits than its factorization.

65768768485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044805 (or 1044798 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 70.

The spelling of 65768768485 in words is "sixty-five billion, seven hundred sixty-eight million, seven hundred sixty-eight thousand, four hundred eighty-five".