19796347771875 has 192 divisors, whose sum is σ = 38747769984000. Its totient is φ = 9960667200000.

The previous prime is 19796347771859. The next prime is 19796347771957. The reversal of 19796347771875 is 57817774369791.

19796347771875 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 6 + 3 + 477 + 71 + 8 + 75 = 666.

It is not a de Polignac number, because 19796347771875 - 2⁴ = 19796347771859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19796347771794 and 19796347771803.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 386327506 + ... + 386378744.

It is an arithmetic number, because the mean of its divisors is an integer number (201811302000).

Almost surely, 2^{19796347771875} is an apocalyptic number.

19796347771875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19796347771875 is a deficient number, since it is larger than the sum of its proper divisors (18951422212125).

19796347771875 is an equidigital number, since it uses as much as digits as its factorization.

19796347771875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51533 (or 51507 counting only the distinct ones).

The product of its digits is 3920736960, while the sum is 81.

The spelling of 19796347771875 in words is "nineteen trillion, seven hundred ninety-six billion, three hundred forty-seven million, seven hundred seventy-one thousand, eight hundred seventy-five".