5149945767 has 4 divisors (see below), whose sum is σ = 6866594360. Its totient is φ = 3433297176.

The previous prime is 5149945747. The next prime is 5149945769. The reversal of 5149945767 is 7675499415.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5149945767 - 2⁸ = 5149945511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5149945769) 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, 858324292 + ... + 858324297.

It is an arithmetic number, because the mean of its divisors is an integer number (1716648590).

Almost surely, 2^5149945767 is an apocalyptic number.

5149945767 is a deficient number, since it is larger than the sum of its proper divisors (1716648593).

5149945767 is a wasteful number, since it uses less digits than its factorization.

5149945767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716648592.

The product of its digits is 9525600, while the sum is 57.

The square root of 5149945767 is about 71763.1226118262. The cubic root of 5149945767 is about 1726.9014408771.

The spelling of 5149945767 in words is "five billion, one hundred forty-nine million, nine hundred forty-five thousand, seven hundred sixty-seven".