19094194494 has 12 divisors (see below), whose sum is σ = 41370754776. Its totient is φ = 6364731492.

The previous prime is 19094194489. The next prime is 19094194499. The reversal of 19094194494 is 49449149091.

19094194494 is a `hidden beast` number, since 190 + 9 + 4 + 1 + 9 + 449 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (19094194489) and next prime (19094194499).

It is a super-3 number, since 3×19094194494³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 19094194494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19094194499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 530394274 + ... + 530394309.

It is an arithmetic number, because the mean of its divisors is an integer number (3447562898).

Almost surely, 2^19094194494 is an apocalyptic number.

19094194494 is an abundant number, since it is smaller than the sum of its proper divisors (22276560282).

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

19094194494 is a wasteful number, since it uses less digits than its factorization.

19094194494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060788591 (or 1060788588 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 19094194494 in words is "nineteen billion, ninety-four million, one hundred ninety-four thousand, four hundred ninety-four".