34138342478 has 8 divisors (see below), whose sum is σ = 51222759600. Its totient is φ = 17064089280.

The previous prime is 34138342477. The next prime is 34138342489. The reversal of 34138342478 is 87424383143.

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

It is a super-4 number, since 4×34138342478⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34138342477) 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, 2532578 + ... + 2546021.

It is an arithmetic number, because the mean of its divisors is an integer number (6402844950).

Almost surely, 2^34138342478 is an apocalyptic number.

34138342478 is a deficient number, since it is larger than the sum of its proper divisors (17084417122).

34138342478 is a wasteful number, since it uses less digits than its factorization.

34138342478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081962.

The product of its digits is 1548288, while the sum is 47.

The spelling of 34138342478 in words is "thirty-four billion, one hundred thirty-eight million, three hundred forty-two thousand, four hundred seventy-eight".