19193721772096 has 63 divisors (see below), whose sum is σ = 38207892902959. Its totient is φ = 9566631544448.

The previous prime is 19193721772073. The next prime is 19193721772103. The reversal of 19193721772096 is 69027712739191.

It is a happy number.

The square root of 19193721772096 is 4381064.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14685325875 + ... + 14685327181.

Almost surely, 2^{19193721772096} is an apocalyptic number.

19193721772096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19193721772096 is the 4381064-th square number.

It is an amenable number.

19193721772096 is a deficient number, since it is larger than the sum of its proper divisors (19014171130863).

19193721772096 is an frugal number, since it uses more digits than its factorization.

19193721772096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 18003384, while the sum is 64.

19193721772096 divided by its sum of digits (64) gives a square (299901902689 = 547633²).

The spelling of 19193721772096 in words is "nineteen trillion, one hundred ninety-three billion, seven hundred twenty-one million, seven hundred seventy-two thousand, ninety-six".