19876305380934 has 16 divisors (see below), whose sum is σ = 39752919066672. Its totient is φ = 6625383742848.

The previous prime is 19876305380933. The next prime is 19876305380947. The reversal of 19876305380934 is 43908350367891.

It is a super-2 number, since 2×19876305380934² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19876305380933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003679 + ... + 13558794.

It is an arithmetic number, because the mean of its divisors is an integer number (2484557441667).

Almost surely, 2^{19876305380934} is an apocalyptic number.

19876305380934 is an abundant number, since it is smaller than the sum of its proper divisors (19876613685738).

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

19876305380934 is a wasteful number, since it uses less digits than its factorization.

19876305380934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25692071.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 19876305380934 in words is "nineteen trillion, eight hundred seventy-six billion, three hundred five million, three hundred eighty thousand, nine hundred thirty-four".