68117070 has 64 divisors (see below), whose sum is σ = 187670016. Its totient is φ = 15500160.

The previous prime is 68117069. The next prime is 68117083. The reversal of 68117070 is 7071186.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57585 + ... + 58755.

It is an arithmetic number, because the mean of its divisors is an integer number (2932344).

Almost surely, 2^68117070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68117070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93835008).

68117070 is an abundant number, since it is smaller than the sum of its proper divisors (119552946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68117070 is a wasteful number, since it uses less digits than its factorization.

68117070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 68117070 is about 8253.3066100806. The cubic root of 68117070 is about 408.3996108809.

The spelling of 68117070 in words is "sixty-eight million, one hundred seventeen thousand, seventy".