194084436512 has 54 divisors (see below), whose sum is σ = 390642329637. Its totient is φ = 94920171264.

The previous prime is 194084436499. The next prime is 194084436541. The reversal of 194084436512 is 215634480491.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 187457825296 + 6626611216 = 432964^2 + 81404^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=311516.

It is a super-2 number, since 2×194084436512² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 117129188 + ... + 117130844.

Almost surely, 2^194084436512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194084436512

194084436512 is an abundant number, since it is smaller than the sum of its proper divisors (196557893125).

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

194084436512 is an frugal number, since it uses more digits than its factorization.

194084436512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 194084436512 in words is "one hundred ninety-four billion, eighty-four million, four hundred thirty-six thousand, five hundred twelve".