65071842377 has 2 divisors, whose sum is σ = 65071842378. Its totient is φ = 65071842376.

The previous prime is 65071842349. The next prime is 65071842403. The reversal of 65071842377 is 77324817056.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55008542521 + 10063299856 = 234539^2 + 100316^2 .

It is a cyclic number.

It is not a de Polignac number, because 65071842377 - 2³⁴ = 47891973193 is a prime.

It is not a weakly prime, because it can be changed into another prime (65071842977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32535921188 + 32535921189.

It is an arithmetic number, because the mean of its divisors is an integer number (32535921189).

Almost surely, 2^65071842377 is an apocalyptic number.

It is an amenable number.

65071842377 is a deficient number, since it is larger than the sum of its proper divisors (1).

65071842377 is an equidigital number, since it uses as much as digits as its factorization.

65071842377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 65071842377 in words is "sixty-five billion, seventy-one million, eight hundred forty-two thousand, three hundred seventy-seven".