19795619971688 has 64 divisors (see below), whose sum is σ = 42623718782400. Its totient is φ = 8524115550720.

The previous prime is 19795619971681. The next prime is 19795619971711. The reversal of 19795619971688 is 88617991659791.

It is not an unprimeable number, because it can be changed into a prime (19795619971681) 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, 48413156 + ... + 48820332.

It is an arithmetic number, because the mean of its divisors is an integer number (665995605975).

Almost surely, 2^{19795619971688} is an apocalyptic number.

It is an amenable number.

19795619971688 is an abundant number, since it is smaller than the sum of its proper divisors (22828098810712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19795619971688 is a wasteful number, since it uses less digits than its factorization.

19795619971688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436290 (or 436286 counting only the distinct ones).

The product of its digits is 3703553280, while the sum is 86.

The spelling of 19795619971688 in words is "nineteen trillion, seven hundred ninety-five billion, six hundred nineteen million, nine hundred seventy-one thousand, six hundred eighty-eight".