68881870 has 8 divisors (see below), whose sum is σ = 123987384. Its totient is φ = 27552744.

The previous prime is 68881861. The next prime is 68881877. The reversal of 68881870 is 7818886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68881870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3444084 + ... + 3444103.

It is an arithmetic number, because the mean of its divisors is an integer number (15498423).

Almost surely, 2^68881870 is an apocalyptic number.

68881870 is a deficient number, since it is larger than the sum of its proper divisors (55105514).

68881870 is a wasteful number, since it uses less digits than its factorization.

68881870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888194.

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 68881870 is about 8299.5102265134. The cubic root of 68881870 is about 409.9223926082.

It can be divided in two parts, 68881 and 870, that added together give a triangular number (69751 = T₃₇₃).

The spelling of 68881870 in words is "sixty-eight million, eight hundred eighty-one thousand, eight hundred seventy".