183233996978 has 18 divisors (see below), whose sum is σ = 280183770237. Its totient is φ = 89872636360.

The previous prime is 183233996903. The next prime is 183233996999. The reversal of 183233996978 is 879699332381.

It can be written as a sum of positive squares in 2 ways, for example, as 173808111409 + 9425885569 = 416903^2 + 97087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=302683.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32081543 + ... + 32087253.

Almost surely, 2^183233996978 is an apocalyptic number.

183233996978 is a deficient number, since it is larger than the sum of its proper divisors (96949773259).

183233996978 is an frugal number, since it uses more digits than its factorization.

183233996978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530 (or 5766 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 68.

The spelling of 183233996978 in words is "one hundred eighty-three billion, two hundred thirty-three million, nine hundred ninety-six thousand, nine hundred seventy-eight".