34478972938 has 8 divisors (see below), whose sum is σ = 51719425380. Its totient is φ = 17239164480.

The previous prime is 34478972933. The next prime is 34478972939. The reversal of 34478972938 is 83927987443.

It can be written as a sum of positive squares in 2 ways, for example, as 34352027649 + 126945289 = 185343^2 + 11267^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 34478972938.

It is not an unprimeable number, because it can be changed into a prime (34478972933) 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, 8578 + ... + 262738.

Almost surely, 2^34478972938 is an apocalyptic number.

34478972938 is a deficient number, since it is larger than the sum of its proper divisors (17240452442).

34478972938 is a wasteful number, since it uses less digits than its factorization.

34478972938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321992.

The product of its digits is 73156608, while the sum is 64.

The spelling of 34478972938 in words is "thirty-four billion, four hundred seventy-eight million, nine hundred seventy-two thousand, nine hundred thirty-eight".