183978381283 has 4 divisors (see below), whose sum is σ = 189913167808. Its totient is φ = 178043594760.

The previous prime is 183978381259. The next prime is 183978381299. The reversal of 183978381283 is 382183879381.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-183978381283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (183978381203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2967393216 + ... + 2967393277.

It is an arithmetic number, because the mean of its divisors is an integer number (47478291952).

Almost surely, 2^183978381283 is an apocalyptic number.

183978381283 is a deficient number, since it is larger than the sum of its proper divisors (5934786525).

183978381283 is an equidigital number, since it uses as much as digits as its factorization.

183978381283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934786524.

The product of its digits is 13934592, while the sum is 61.

The spelling of 183978381283 in words is "one hundred eighty-three billion, nine hundred seventy-eight million, three hundred eighty-one thousand, two hundred eighty-three".