68581870 has 48 divisors (see below), whose sum is σ = 145815120. Its totient is φ = 23151744.

The previous prime is 68581823. The next prime is 68581879. The reversal of 68581870 is 7818586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68581879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31786 + ... + 33874.

It is an arithmetic number, because the mean of its divisors is an integer number (3037815).

Almost surely, 2^68581870 is an apocalyptic number.

68581870 is an abundant number, since it is smaller than the sum of its proper divisors (77233250).

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

68581870 is a wasteful number, since it uses less digits than its factorization.

68581870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 68581870 is about 8281.4171492565. The cubic root of 68581870 is about 409.3264172869.

The spelling of 68581870 in words is "sixty-eight million, five hundred eighty-one thousand, eight hundred seventy".