19242039680641 has 4 divisors (see below), whose sum is σ = 19262977700800. Its totient is φ = 19221101660484.

The previous prime is 19242039680627. The next prime is 19242039680653. The reversal of 19242039680641 is 14608693024291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19242039680641 is a prime.

It is a super-3 number, since 3×19242039680641³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19242039680041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10469008701 + ... + 10469010538.

It is an arithmetic number, because the mean of its divisors is an integer number (4815744425200).

Almost surely, 2^{19242039680641} is an apocalyptic number.

It is an amenable number.

19242039680641 is a deficient number, since it is larger than the sum of its proper divisors (20938020159).

19242039680641 is an equidigital number, since it uses as much as digits as its factorization.

19242039680641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20938020158.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 19242039680641 in words is "nineteen trillion, two hundred forty-two billion, thirty-nine million, six hundred eighty thousand, six hundred forty-one".