849680757 has 12 divisors (see below), whose sum is σ = 1299511980. Its totient is φ = 533132928.

The previous prime is 849680707. The next prime is 849680813. The reversal of 849680757 is 757086948.

849680757 is a `hidden beast` number, since 8 + 496 + 80 + 75 + 7 = 666.

849680757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 582063876 + 267616881 = 24126^2 + 16359^2 .

It is not a de Polignac number, because 849680757 - 2¹⁴ = 849664373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849680707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2776582 + ... + 2776887.

It is an arithmetic number, because the mean of its divisors is an integer number (108292665).

Almost surely, 2^849680757 is an apocalyptic number.

It is an amenable number.

849680757 is a deficient number, since it is larger than the sum of its proper divisors (449831223).

849680757 is a wasteful number, since it uses less digits than its factorization.

849680757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553492 (or 5553489 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 849680757 is about 29149.2839877758. The cubic root of 849680757 is about 947.1496306678.

It can be divided in two parts, 8496 and 80757, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 849680757 in words is "eight hundred forty-nine million, six hundred eighty thousand, seven hundred fifty-seven".