19653797068320 has 48 divisors (see below), whose sum is σ = 61909460766720. Its totient is φ = 5241012551424.

The previous prime is 19653797068219. The next prime is 19653797068333. The reversal of 19653797068320 is 2386079735691.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20472704800 + ... + 20472705759.

It is an arithmetic number, because the mean of its divisors is an integer number (1289780432640).

Almost surely, 2^{19653797068320} is an apocalyptic number.

19653797068320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19653797068320 is an abundant number, since it is smaller than the sum of its proper divisors (42255663698400).

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

19653797068320 is a wasteful number, since it uses less digits than its factorization.

19653797068320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40945410577 (or 40945410569 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 66.

The spelling of 19653797068320 in words is "nineteen trillion, six hundred fifty-three billion, seven hundred ninety-seven million, sixty-eight thousand, three hundred twenty".