179883857479 has 2 divisors, whose sum is σ = 179883857480. Its totient is φ = 179883857478.

The previous prime is 179883857407. The next prime is 179883857497. The reversal of 179883857479 is 974758388971.

Together with next prime (179883857497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 179883857479 - 2²¹ = 179881760327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (179883857779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89941928739 + 89941928740.

It is an arithmetic number, because the mean of its divisors is an integer number (89941928740).

Almost surely, 2^179883857479 is an apocalyptic number.

179883857479 is a deficient number, since it is larger than the sum of its proper divisors (1).

179883857479 is an equidigital number, since it uses as much as digits as its factorization.

179883857479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 853493760, while the sum is 76.

The spelling of 179883857479 in words is "one hundred seventy-nine billion, eight hundred eighty-three million, eight hundred fifty-seven thousand, four hundred seventy-nine".