679209469858471 has 2 divisors, whose sum is σ = 679209469858472. Its totient is φ = 679209469858470.

The previous prime is 679209469858463. The next prime is 679209469858657. The reversal of 679209469858471 is 174858964902976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679209469858471 - 2³ = 679209469858463 is a prime.

It is a super-3 number, since 3×679209469858471³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679209469858411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339604734929235 + 339604734929236.

It is an arithmetic number, because the mean of its divisors is an integer number (339604734929236).

Almost surely, 2^{679209469858471} is an apocalyptic number.

679209469858471 is a deficient number, since it is larger than the sum of its proper divisors (1).

679209469858471 is an equidigital number, since it uses as much as digits as its factorization.

679209469858471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13168189440, while the sum is 85.

The spelling of 679209469858471 in words is "six hundred seventy-nine trillion, two hundred nine billion, four hundred sixty-nine million, eight hundred fifty-eight thousand, four hundred seventy-one".