19345066868735 has 32 divisors (see below), whose sum is σ = 23434032153600. Its totient is φ = 15329935514880.

The previous prime is 19345066868713. The next prime is 19345066868741. The reversal of 19345066868735 is 53786866054391.

It is not a de Polignac number, because 19345066868735 - 2²⁶ = 19344999759871 is a prime.

It is a super-2 number, since 2×19345066868735² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812157656 + ... + 812181474.

It is an arithmetic number, because the mean of its divisors is an integer number (732313504800).

Almost surely, 2^{19345066868735} is an apocalyptic number.

19345066868735 is a deficient number, since it is larger than the sum of its proper divisors (4088965284865).

19345066868735 is a wasteful number, since it uses less digits than its factorization.

19345066868735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471.

The product of its (nonzero) digits is 783820800, while the sum is 71.

The spelling of 19345066868735 in words is "nineteen trillion, three hundred forty-five billion, sixty-six million, eight hundred sixty-eight thousand, seven hundred thirty-five".