67085883961 has 2 divisors, whose sum is σ = 67085883962. Its totient is φ = 67085883960.

The previous prime is 67085883959. The next prime is 67085884003. The reversal of 67085883961 is 16938858076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45471297600 + 21614586361 = 213240^2 + 147019^2 .

It is a cyclic number.

It is not a de Polignac number, because 67085883961 - 2¹ = 67085883959 is a prime.

Together with 67085883959, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67085883961.

It is not a weakly prime, because it can be changed into another prime (67085883661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33542941980 + 33542941981.

It is an arithmetic number, because the mean of its divisors is an integer number (33542941981).

Almost surely, 2^67085883961 is an apocalyptic number.

It is an amenable number.

67085883961 is a deficient number, since it is larger than the sum of its proper divisors (1).

67085883961 is an equidigital number, since it uses as much as digits as its factorization.

67085883961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 67085883961 in words is "sixty-seven billion, eighty-five million, eight hundred eighty-three thousand, nine hundred sixty-one".