183878885009 has 2 divisors, whose sum is σ = 183878885010. Its totient is φ = 183878885008.

The previous prime is 183878884957. The next prime is 183878885023. The reversal of 183878885009 is 900588878381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182072890000 + 1805995009 = 426700^2 + 42497^2 .

It is a cyclic number.

It is not a de Polignac number, because 183878885009 - 2³² = 179583917713 is a prime.

It is a super-2 number, since 2×183878885009² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (183878884009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91939442504 + 91939442505.

It is an arithmetic number, because the mean of its divisors is an integer number (91939442505).

Almost surely, 2^183878885009 is an apocalyptic number.

It is an amenable number.

183878885009 is a deficient number, since it is larger than the sum of its proper divisors (1).

183878885009 is an equidigital number, since it uses as much as digits as its factorization.

183878885009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30965760, while the sum is 65.

The spelling of 183878885009 in words is "one hundred eighty-three billion, eight hundred seventy-eight million, eight hundred eighty-five thousand, nine".