19238696815550 has 48 divisors (see below), whose sum is σ = 36637444709712. Its totient is φ = 7512145132800.

The previous prime is 19238696815549. The next prime is 19238696815621. The reversal of 19238696815550 is 5551869683291.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1100432 + ... + 6299868.

It is an arithmetic number, because the mean of its divisors is an integer number (763280098119).

Almost surely, 2^{19238696815550} is an apocalyptic number.

19238696815550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19238696815550 is a deficient number, since it is larger than the sum of its proper divisors (17398747894162).

19238696815550 is a wasteful number, since it uses less digits than its factorization.

19238696815550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201213 (or 5201208 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 68.

The spelling of 19238696815550 in words is "nineteen trillion, two hundred thirty-eight billion, six hundred ninety-six million, eight hundred fifteen thousand, five hundred fifty".