19953049463 has 16 divisors (see below), whose sum is σ = 20687244480. Its totient is φ = 19231027200.

The previous prime is 19953049453. The next prime is 19953049499. The reversal of 19953049463 is 36494035991.

It is a cyclic number.

It is not a de Polignac number, because 19953049463 - 2¹⁰ = 19953048439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19953049433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7358678 + ... + 7361388.

It is an arithmetic number, because the mean of its divisors is an integer number (1292952780).

Almost surely, 2^19953049463 is an apocalyptic number.

19953049463 is a deficient number, since it is larger than the sum of its proper divisors (734195017).

19953049463 is a wasteful number, since it uses less digits than its factorization.

19953049463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858.

The product of its (nonzero) digits is 3149280, while the sum is 53.

The spelling of 19953049463 in words is "nineteen billion, nine hundred fifty-three million, forty-nine thousand, four hundred sixty-three".