68470015578 has 8 divisors (see below), whose sum is σ = 136940031168. Its totient is φ = 22823338524.

The previous prime is 68470015571. The next prime is 68470015597. The reversal of 68470015578 is 87551007486.

It is a happy number.

68470015578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

68470015578 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 68470015578.

It is not an unprimeable number, because it can be changed into a prime (68470015571) 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, 5705834626 + ... + 5705834637.

It is an arithmetic number, because the mean of its divisors is an integer number (17117503896).

Almost surely, 2^68470015578 is an apocalyptic number.

68470015578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68470015578 is a wasteful number, since it uses less digits than its factorization.

68470015578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411669268.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 68470015578 in words is "sixty-eight billion, four hundred seventy million, fifteen thousand, five hundred seventy-eight".