34478428634 has 8 divisors (see below), whose sum is σ = 55695923220. Its totient is φ = 15913120896.

The previous prime is 34478428609. The next prime is 34478428639. The reversal of 34478428634 is 43682487443.

It can be written as a sum of positive squares in 2 ways, for example, as 29806296025 + 4672132609 = 172645^2 + 68353^2 .

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

It is a super-2 number, since 2×34478428634² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34478428639) 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, 663046679 + ... + 663046730.

Almost surely, 2^34478428634 is an apocalyptic number.

34478428634 is a deficient number, since it is larger than the sum of its proper divisors (21217494586).

34478428634 is a wasteful number, since it uses less digits than its factorization.

34478428634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326093424.

The product of its digits is 12386304, while the sum is 53.

The spelling of 34478428634 in words is "thirty-four billion, four hundred seventy-eight million, four hundred twenty-eight thousand, six hundred thirty-four".