68551970 has 8 divisors (see below), whose sum is σ = 123393564. Its totient is φ = 27420784.

The previous prime is 68551927. The next prime is 68551979. The reversal of 68551970 is 7915586.

It can be written as a sum of positive squares in 2 ways, for example, as 63856081 + 4695889 = 7991^2 + 2167^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68551979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3427589 + ... + 3427608.

Almost surely, 2^68551970 is an apocalyptic number.

68551970 is a deficient number, since it is larger than the sum of its proper divisors (54841594).

68551970 is a wasteful number, since it uses less digits than its factorization.

68551970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855204.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 68551970 is about 8279.6117058712. The cubic root of 68551970 is about 409.2669232403.

The spelling of 68551970 in words is "sixty-eight million, five hundred fifty-one thousand, nine hundred seventy".