65280436771 has 16 divisors (see below), whose sum is σ = 73526750208. Its totient is φ = 57420165600.

The previous prime is 65280436733. The next prime is 65280436783. The reversal of 65280436771 is 17763408256.

It is a cyclic number.

It is not a de Polignac number, because 65280436771 - 2⁹ = 65280436259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65280430771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2048260 + ... + 2079886.

It is an arithmetic number, because the mean of its divisors is an integer number (4595421888).

Almost surely, 2^65280436771 is an apocalyptic number.

65280436771 is a deficient number, since it is larger than the sum of its proper divisors (8246313437).

65280436771 is a wasteful number, since it uses less digits than its factorization.

65280436771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37722.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 65280436771 in words is "sixty-five billion, two hundred eighty million, four hundred thirty-six thousand, seven hundred seventy-one".