34205001638 has 4 divisors (see below), whose sum is σ = 51307502460. Its totient is φ = 17102500818.

The previous prime is 34205001631. The next prime is 34205001643. The reversal of 34205001638 is 83610050243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83610050243 = 86837 ⋅962839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34205001631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8551250408 + ... + 8551250411.

It is an arithmetic number, because the mean of its divisors is an integer number (12826875615).

Almost surely, 2^34205001638 is an apocalyptic number.

34205001638 is a deficient number, since it is larger than the sum of its proper divisors (17102500822).

34205001638 is a wasteful number, since it uses less digits than its factorization.

34205001638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17102500821.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 34205001638 in words is "thirty-four billion, two hundred five million, one thousand, six hundred thirty-eight".