68868686830 has 16 divisors (see below), whose sum is σ = 125356487760. Its totient is φ = 27237952192.

The previous prime is 68868686819. The next prime is 68868686839. The reversal of 68868686830 is 3868686886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68868686839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38689384 + ... + 38691163.

It is an arithmetic number, because the mean of its divisors is an integer number (7834780485).

Almost surely, 2^68868686830 is an apocalyptic number.

68868686830 is a deficient number, since it is larger than the sum of its proper divisors (56487800930).

68868686830 is a wasteful number, since it uses less digits than its factorization.

68868686830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77380643.

The product of its (nonzero) digits is 127401984, while the sum is 67.

The spelling of 68868686830 in words is "sixty-eight billion, eight hundred sixty-eight million, six hundred eighty-six thousand, eight hundred thirty".