8878808751289 has 9 divisors (see below), whose sum is σ = 8961340833837. Its totient is φ = 8797029979104.

The previous prime is 8878808751259. The next prime is 8878808751341. The reversal of 8878808751289 is 9821578088788.

The square root of 8878808751289 is 2979733.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3976534515625 + 4902274235664 = 1994125^2 + 2214108^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8878808751289 is a prime.

It is a super-2 number, since 2×8878808751289² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8878808751259) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 324777229 + ... + 324804565.

It is an arithmetic number, because the mean of its divisors is an integer number (995704537093).

Almost surely, 2^{8878808751289} is an apocalyptic number.

8878808751289 is the 2979733-rd square number.

8878808751289 is the 1489867-th centered octagonal number.

It is an amenable number.

8878808751289 is a deficient number, since it is larger than the sum of its proper divisors (82532082548).

8878808751289 is an frugal number, since it uses more digits than its factorization.

8878808751289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54892 (or 27446 counting only the distinct ones).

The product of its (nonzero) digits is 1156055040, while the sum is 79.

The spelling of 8878808751289 in words is "eight trillion, eight hundred seventy-eight billion, eight hundred eight million, seven hundred fifty-one thousand, two hundred eighty-nine".