8757678549 has 16 divisors (see below), whose sum is σ = 11963781632. Its totient is φ = 5695362288.

The previous prime is 8757678539. The next prime is 8757678551. The reversal of 8757678549 is 9458767578.

It is not a de Polignac number, because 8757678549 - 2¹⁵ = 8757645781 is a prime.

It is a super-2 number, since 2×8757678549² (a number of 21 digits) contains 22 as substring.

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 8757678549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8757678509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58392 + ... + 144654.

It is an arithmetic number, because the mean of its divisors is an integer number (747736352).

Almost surely, 2^8757678549 is an apocalyptic number.

It is an amenable number.

8757678549 is a deficient number, since it is larger than the sum of its proper divisors (3206103083).

8757678549 is a wasteful number, since it uses less digits than its factorization.

8757678549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87096.

The product of its digits is 118540800, while the sum is 66.

The square root of 8757678549 is about 93582.4692397032. The cubic root of 8757678549 is about 2061.2452449292.

The spelling of 8757678549 in words is "eight billion, seven hundred fifty-seven million, six hundred seventy-eight thousand, five hundred forty-nine".