34644081138 has 16 divisors (see below), whose sum is σ = 69616544736. Its totient is φ = 11493296640.

The previous prime is 34644081137. The next prime is 34644081211. The reversal of 34644081138 is 83118044643.

It is a self number, because there is not a number n which added to its sum of digits gives 34644081138.

It is not an unprimeable number, because it can be changed into a prime (34644081133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13681231 + ... + 13683762.

It is an arithmetic number, because the mean of its divisors is an integer number (4351034046).

Almost surely, 2^34644081138 is an apocalyptic number.

34644081138 is an abundant number, since it is smaller than the sum of its proper divisors (34972463598).

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

34644081138 is a wasteful number, since it uses less digits than its factorization.

34644081138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27365209.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 34644081138 in words is "thirty-four billion, six hundred forty-four million, eighty-one thousand, one hundred thirty-eight".