4993142849 has 4 divisors (see below), whose sum is σ = 5029064880. Its totient is φ = 4957220820.

The previous prime is 4993142837. The next prime is 4993142857. The reversal of 4993142849 is 9482413994.

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 4993142849 - 2⁸ = 4993142593 is a prime.

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 4993142849.

It is not an unprimeable number, because it can be changed into a prime (4993042849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17960807 + ... + 17961084.

It is an arithmetic number, because the mean of its divisors is an integer number (1257266220).

Almost surely, 2^4993142849 is an apocalyptic number.

It is an amenable number.

4993142849 is a deficient number, since it is larger than the sum of its proper divisors (35922031).

4993142849 is a wasteful number, since it uses less digits than its factorization.

4993142849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35922030.

The product of its digits is 2239488, while the sum is 53.

The square root of 4993142849 is about 70662.1741032640. The cubic root of 4993142849 is about 1709.1938848351.

The spelling of 4993142849 in words is "four billion, nine hundred ninety-three million, one hundred forty-two thousand, eight hundred forty-nine".