19358933204989 has 32 divisors (see below), whose sum is σ = 23505866772480. Its totient is φ = 15585071179392.

The previous prime is 19358933204981. The next prime is 19358933204993. The reversal of 19358933204989 is 98940233985391.

It is a cyclic number.

It is not a de Polignac number, because 19358933204989 - 2³ = 19358933204981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19358933204981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509472 + ... + 6243190.

It is an arithmetic number, because the mean of its divisors is an integer number (734558336640).

Almost surely, 2^{19358933204989} is an apocalyptic number.

It is an amenable number.

19358933204989 is a deficient number, since it is larger than the sum of its proper divisors (4146933567491).

19358933204989 is a wasteful number, since it uses less digits than its factorization.

19358933204989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734129.

The product of its (nonzero) digits is 453496320, while the sum is 73.

The spelling of 19358933204989 in words is "nineteen trillion, three hundred fifty-eight billion, nine hundred thirty-three million, two hundred four thousand, nine hundred eighty-nine".