183668739497 has 8 divisors (see below), whose sum is σ = 196612389600. Its totient is φ = 171052776864.

The previous prime is 183668739493. The next prime is 183668739511. The reversal of 183668739497 is 794937866381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 183668739497 - 2² = 183668739493 is a prime.

It is a super-4 number, since 4×183668739497⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 183668739497.

It is not an unprimeable number, because it can be changed into a prime (183668739493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81920708 + ... + 81922949.

It is an arithmetic number, because the mean of its divisors is an integer number (24576548700).

Almost surely, 2^183668739497 is an apocalyptic number.

It is an amenable number.

183668739497 is a deficient number, since it is larger than the sum of its proper divisors (12943650103).

183668739497 is a wasteful number, since it uses less digits than its factorization.

183668739497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163843735.

The product of its digits is 329204736, while the sum is 71.

The spelling of 183668739497 in words is "one hundred eighty-three billion, six hundred sixty-eight million, seven hundred thirty-nine thousand, four hundred ninety-seven".