19035082421 has 4 divisors (see below), whose sum is σ = 19172025600. Its totient is φ = 18898139244.

The previous prime is 19035082403. The next prime is 19035082433. The reversal of 19035082421 is 12428053091.

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 not a de Polignac number, because 19035082421 - 2¹⁰ = 19035081397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19035982421) 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, 68471381 + ... + 68471658.

It is an arithmetic number, because the mean of its divisors is an integer number (4793006400).

Almost surely, 2^19035082421 is an apocalyptic number.

It is an amenable number.

19035082421 is a deficient number, since it is larger than the sum of its proper divisors (136943179).

19035082421 is a wasteful number, since it uses less digits than its factorization.

19035082421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136943178.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 19035082421 in words is "nineteen billion, thirty-five million, eighty-two thousand, four hundred twenty-one".