34664447978 has 8 divisors (see below), whose sum is σ = 52024829472. Its totient is φ = 17322838156.

The previous prime is 34664447977. The next prime is 34664448019. The reversal of 34664447978 is 87974446643.

34664447978 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.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 34664447978.

It is not an unprimeable number, because it can be changed into a prime (34664447977) 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, 4688300 + ... + 4695687.

It is an arithmetic number, because the mean of its divisors is an integer number (6503103684).

Almost surely, 2^34664447978 is an apocalyptic number.

34664447978 is a deficient number, since it is larger than the sum of its proper divisors (17360381494).

34664447978 is a wasteful number, since it uses less digits than its factorization.

34664447978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385836.

The product of its digits is 97542144, while the sum is 62.

The spelling of 34664447978 in words is "thirty-four billion, six hundred sixty-four million, four hundred forty-seven thousand, nine hundred seventy-eight".