65280436733 has 2 divisors, whose sum is σ = 65280436734. Its totient is φ = 65280436732.

The previous prime is 65280436691. The next prime is 65280436783. The reversal of 65280436733 is 33763408256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49908900409 + 15371536324 = 223403^2 + 123982^2 .

It is a cyclic number.

It is not a de Polignac number, because 65280436733 - 2¹⁶ = 65280371197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65280436783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640218366 + 32640218367.

It is an arithmetic number, because the mean of its divisors is an integer number (32640218367).

Almost surely, 2^65280436733 is an apocalyptic number.

It is an amenable number.

65280436733 is a deficient number, since it is larger than the sum of its proper divisors (1).

65280436733 is an equidigital number, since it uses as much as digits as its factorization.

65280436733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 65280436733 in words is "sixty-five billion, two hundred eighty million, four hundred thirty-six thousand, seven hundred thirty-three".