19140021402304 has 56 divisors (see below), whose sum is σ = 41435345938896. Its totient is φ = 8699684352000.

The previous prime is 19140021402277. The next prime is 19140021402349. The reversal of 19140021402304 is 40320412004191.

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, 18851964 + ... + 19841284.

It is an arithmetic number, because the mean of its divisors is an integer number (739916891766).

Almost surely, 2^{19140021402304} is an apocalyptic number.

It is an amenable number.

19140021402304 is an abundant number, since it is smaller than the sum of its proper divisors (22295324536592).

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

19140021402304 is a wasteful number, since it uses less digits than its factorization.

19140021402304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016825 (or 1016815 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 19140021402304 its reverse (40320412004191), we get a palindrome (59460433406495).

The spelling of 19140021402304 in words is "nineteen trillion, one hundred forty billion, twenty-one million, four hundred two thousand, three hundred four".