19876946635 has 32 divisors (see below), whose sum is σ = 31083599232. Its totient is φ = 11841361920.

The previous prime is 19876946549. The next prime is 19876946641. The reversal of 19876946635 is 53664967891.

It is not a de Polignac number, because 19876946635 - 2²⁵ = 19843392203 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1277136 + ... + 1292605.

It is an arithmetic number, because the mean of its divisors is an integer number (971362476).

Almost surely, 2^19876946635 is an apocalyptic number.

19876946635 is a deficient number, since it is larger than the sum of its proper divisors (11206652597).

19876946635 is a wasteful number, since it uses less digits than its factorization.

19876946635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569783.

The product of its digits is 58786560, while the sum is 64.

The spelling of 19876946635 in words is "nineteen billion, eight hundred seventy-six million, nine hundred forty-six thousand, six hundred thirty-five".