208179072019 has 2 divisors, whose sum is σ = 208179072020. Its totient is φ = 208179072018.

The previous prime is 208179071963. The next prime is 208179072029. The reversal of 208179072019 is 910270971802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208179072019 - 2¹¹ = 208179069971 is a prime.

It is a super-2 number, since 2×208179072019² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 208179072019.

It is not a weakly prime, because it can be changed into another prime (208179072029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104089536009 + 104089536010.

It is an arithmetic number, because the mean of its divisors is an integer number (104089536010).

Almost surely, 2^208179072019 is an apocalyptic number.

208179072019 is a deficient number, since it is larger than the sum of its proper divisors (1).

208179072019 is an equidigital number, since it uses as much as digits as its factorization.

208179072019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 208179072019 in words is "two hundred eight billion, one hundred seventy-nine million, seventy-two thousand, nineteen".