20434011635 has 16 divisors (see below), whose sum is σ = 25105099392. Its totient is φ = 15959424000.

The previous prime is 20434011589. The next prime is 20434011641. The reversal of 20434011635 is 53611043402.

It is not a de Polignac number, because 20434011635 - 2²⁴ = 20417234419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20434011598 and 20434011607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14186 + ... + 202655.

It is an arithmetic number, because the mean of its divisors is an integer number (1569068712).

Almost surely, 2^20434011635 is an apocalyptic number.

20434011635 is a deficient number, since it is larger than the sum of its proper divisors (4671087757).

20434011635 is a wasteful number, since it uses less digits than its factorization.

20434011635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217294.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 20434011635 in words is "twenty billion, four hundred thirty-four million, eleven thousand, six hundred thirty-five".