685247068367 has 2 divisors, whose sum is σ = 685247068368. Its totient is φ = 685247068366.

The previous prime is 685247068361. The next prime is 685247068393. The reversal of 685247068367 is 763860742586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 685247068367 - 2⁴ = 685247068351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (685247068361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342623534183 + 342623534184.

It is an arithmetic number, because the mean of its divisors is an integer number (342623534184).

Almost surely, 2^685247068367 is an apocalyptic number.

685247068367 is a deficient number, since it is larger than the sum of its proper divisors (1).

685247068367 is an equidigital number, since it uses as much as digits as its factorization.

685247068367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81285120, while the sum is 62.

The spelling of 685247068367 in words is "six hundred eighty-five billion, two hundred forty-seven million, sixty-eight thousand, three hundred sixty-seven".