65768772 has 12 divisors (see below), whose sum is σ = 153460496. Its totient is φ = 21922920.

The previous prime is 65768711. The next prime is 65768779. The reversal of 65768772 is 27786756.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (65768779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2740354 + ... + 2740377.

Almost surely, 2^65768772 is an apocalyptic number.

It is an amenable number.

65768772 is an abundant number, since it is smaller than the sum of its proper divisors (87691724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65768772 is a wasteful number, since it uses less digits than its factorization.

65768772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480738 (or 5480736 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The square root of 65768772 is about 8109.7948186129. The cubic root of 65768772 is about 403.6515064856.

The spelling of 65768772 in words is "sixty-five million, seven hundred sixty-eight thousand, seven hundred seventy-two".