19421199094 has 32 divisors (see below), whose sum is σ = 33006528000. Its totient is φ = 8493524640.

The previous prime is 19421199067. The next prime is 19421199131. The reversal of 19421199094 is 49099112491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98169 + ... + 220180.

It is an arithmetic number, because the mean of its divisors is an integer number (1031454000).

Almost surely, 2^19421199094 is an apocalyptic number.

19421199094 is a deficient number, since it is larger than the sum of its proper divisors (13585328906).

19421199094 is a wasteful number, since it uses less digits than its factorization.

19421199094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318468.

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 19421199094 in words is "nineteen billion, four hundred twenty-one million, one hundred ninety-nine thousand, ninety-four".