19493729604216 has 96 divisors (see below), whose sum is σ = 60516778739040. Its totient is φ = 5553109868544.

The previous prime is 19493729604187. The next prime is 19493729604253. The reversal of 19493729604216 is 61240692739491.

19493729604216 is a `hidden beast` number, since 1 + 9 + 4 + 9 + 3 + 7 + 2 + 9 + 604 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 57215961 + ... + 57555656.

It is an arithmetic number, because the mean of its divisors is an integer number (630383111865).

Almost surely, 2^{19493729604216} is an apocalyptic number.

It is an amenable number.

19493729604216 is an abundant number, since it is smaller than the sum of its proper divisors (41023049134824).

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

19493729604216 is a wasteful number, since it uses less digits than its factorization.

19493729604216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114771973 (or 114771966 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 19493729604216 in words is "nineteen trillion, four hundred ninety-three billion, seven hundred twenty-nine million, six hundred four thousand, two hundred sixteen".