308487743849 has 4 divisors (see below), whose sum is σ = 308806760064. Its totient is φ = 308168727636.

The previous prime is 308487743827. The next prime is 308487743899. The reversal of 308487743849 is 948347784803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 308487743849 - 2¹⁶ = 308487678313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (308487743819) 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, 159506657 + ... + 159508590.

It is an arithmetic number, because the mean of its divisors is an integer number (77201690016).

Almost surely, 2^308487743849 is an apocalyptic number.

It is an amenable number.

308487743849 is a deficient number, since it is larger than the sum of its proper divisors (319016215).

308487743849 is an equidigital number, since it uses as much as digits as its factorization.

308487743849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319016214.

The product of its (nonzero) digits is 130056192, while the sum is 65.

The spelling of 308487743849 in words is "three hundred eight billion, four hundred eighty-seven million, seven hundred forty-three thousand, eight hundred forty-nine".