5149790817 has 4 divisors (see below), whose sum is σ = 6866387760. Its totient is φ = 3433193876.

The previous prime is 5149790803. The next prime is 5149790851. The reversal of 5149790817 is 7180979415.

It is a happy number.

5149790817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5149790817 - 2²² = 5145596513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5149790817.

It is not an unprimeable number, because it can be changed into a prime (5149790717) 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, 858298467 + ... + 858298472.

It is an arithmetic number, because the mean of its divisors is an integer number (1716596940).

Almost surely, 2^5149790817 is an apocalyptic number.

It is an amenable number.

5149790817 is a deficient number, since it is larger than the sum of its proper divisors (1716596943).

5149790817 is a wasteful number, since it uses less digits than its factorization.

5149790817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716596942.

The product of its (nonzero) digits is 635040, while the sum is 51.

The square root of 5149790817 is about 71762.0430102154. The cubic root of 5149790817 is about 1726.8841212085.

The spelling of 5149790817 in words is "five billion, one hundred forty-nine million, seven hundred ninety thousand, eight hundred seventeen".