19973853627 has 96 divisors (see below), whose sum is σ = 33669282816. Its totient is φ = 10310976000.

The previous prime is 19973853587. The next prime is 19973853631. The reversal of 19973853627 is 72635837991.

It is not a de Polignac number, because 19973853627 - 2¹⁰ = 19973852603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19973853667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36919977 + ... + 36920517.

It is an arithmetic number, because the mean of its divisors is an integer number (350721696).

Almost surely, 2^19973853627 is an apocalyptic number.

19973853627 is a deficient number, since it is larger than the sum of its proper divisors (13695429189).

19973853627 is a wasteful number, since it uses less digits than its factorization.

19973853627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 768 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The spelling of 19973853627 in words is "nineteen billion, nine hundred seventy-three million, eight hundred fifty-three thousand, six hundred twenty-seven".