20193934835 has 8 divisors (see below), whose sum is σ = 24233611920. Its totient is φ = 16154554464.

The previous prime is 20193934819. The next prime is 20193934909. The reversal of 20193934835 is 53843939102.

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

It is a cyclic number.

It is not a de Polignac number, because 20193934835 - 2⁴ = 20193934819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20193934835.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 123401 + ... + 235829.

It is an arithmetic number, because the mean of its divisors is an integer number (3029201490).

Almost surely, 2^20193934835 is an apocalyptic number.

20193934835 is a deficient number, since it is larger than the sum of its proper divisors (4039677085).

20193934835 is a wasteful number, since it uses less digits than its factorization.

20193934835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148357.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 20193934835 in words is "twenty billion, one hundred ninety-three million, nine hundred thirty-four thousand, eight hundred thirty-five".