19294535394 has 16 divisors (see below), whose sum is σ = 42876745440. Its totient is φ = 6431511780.

The previous prime is 19294535371. The next prime is 19294535443. The reversal of 19294535394 is 49353549291.

19294535394 is a `hidden beast` number, since 19 + 2 + 9 + 4 + 535 + 3 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 357306211 = 19294535394 / (1 + 9 + 2 + 9 + 4 + 5 + 3 + 5 + 3 + 9 + 4).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19294535394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178653052 + ... + 178653159.

It is an arithmetic number, because the mean of its divisors is an integer number (2679796590).

Almost surely, 2^19294535394 is an apocalyptic number.

19294535394 is an abundant number, since it is smaller than the sum of its proper divisors (23582210046).

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

19294535394 is a wasteful number, since it uses less digits than its factorization.

19294535394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357306222 (or 357306216 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The spelling of 19294535394 in words is "nineteen billion, two hundred ninety-four million, five hundred thirty-five thousand, three hundred ninety-four".