68877233277885 has 12 divisors (see below), whose sum is σ = 119387204348412. Its totient is φ = 36734524414848.

The previous prime is 68877233277869. The next prime is 68877233277943. The reversal of 68877233277885 is 58877233277886.

68877233277885 is a `hidden beast` number, since 6 + 8 + 87 + 72 + 3 + 327 + 78 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46273883805081 + 22603349472804 = 6802491^2 + 4754298^2 .

It is not a de Polignac number, because 68877233277885 - 2⁴ = 68877233277869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765302591932 + ... + 765302592021.

It is an arithmetic number, because the mean of its divisors is an integer number (9948933695701).

Almost surely, 2^{68877233277885} is an apocalyptic number.

It is an amenable number.

68877233277885 is a deficient number, since it is larger than the sum of its proper divisors (50509971070527).

68877233277885 is a wasteful number, since it uses less digits than its factorization.

68877233277885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530605183964 (or 1530605183961 counting only the distinct ones).

The product of its digits is 10621255680, while the sum is 81.

Subtracting from 68877233277885 its reverse (58877233277886), we obtain a palindrome (9999999999999).

The spelling of 68877233277885 in words is "sixty-eight trillion, eight hundred seventy-seven billion, two hundred thirty-three million, two hundred seventy-seven thousand, eight hundred eighty-five".