19404279850794 has 32 divisors (see below), whose sum is σ = 40306041123840. Its totient is φ = 6223178098032.

The previous prime is 19404279850759. The next prime is 19404279850799. The reversal of 19404279850794 is 49705897240491.

It is not an unprimeable number, because it can be changed into a prime (19404279850799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583114744 + ... + 583148019.

It is an arithmetic number, because the mean of its divisors is an integer number (1259563785120).

Almost surely, 2^{19404279850794} is an apocalyptic number.

19404279850794 is an abundant number, since it is smaller than the sum of its proper divisors (20901761273046).

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

19404279850794 is a wasteful number, since it uses less digits than its factorization.

19404279850794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166262874.

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 19404279850794 in words is "nineteen trillion, four hundred four billion, two hundred seventy-nine million, eight hundred fifty thousand, seven hundred ninety-four".