182219540809 has 2 divisors, whose sum is σ = 182219540810. Its totient is φ = 182219540808.

The previous prime is 182219540771. The next prime is 182219540837. The reversal of 182219540809 is 908045912281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148537014025 + 33682526784 = 385405^2 + 183528^2 .

It is a cyclic number.

It is not a de Polignac number, because 182219540809 - 2²⁵ = 182185986377 is a prime.

It is a super-2 number, since 2×182219540809² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (182219550809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91109770404 + 91109770405.

It is an arithmetic number, because the mean of its divisors is an integer number (91109770405).

Almost surely, 2^182219540809 is an apocalyptic number.

It is an amenable number.

182219540809 is a deficient number, since it is larger than the sum of its proper divisors (1).

182219540809 is an equidigital number, since it uses as much as digits as its factorization.

182219540809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 182219540809 in words is "one hundred eighty-two billion, two hundred nineteen million, five hundred forty thousand, eight hundred nine".