194037838085 has 16 divisors (see below), whose sum is σ = 286578961536. Its totient is φ = 122819554368.

The previous prime is 194037838063. The next prime is 194037838123. The reversal of 194037838085 is 580838730491.

It is not a de Polignac number, because 194037838085 - 2¹⁰ = 194037837061 is a prime.

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 194037838085.

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, 213227939 + ... + 213228848.

It is an arithmetic number, because the mean of its divisors is an integer number (17911185096).

Almost surely, 2^194037838085 is an apocalyptic number.

It is an amenable number.

194037838085 is a deficient number, since it is larger than the sum of its proper divisors (92541123451).

194037838085 is a wasteful number, since it uses less digits than its factorization.

194037838085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426456812.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 194037838085 in words is "one hundred ninety-four billion, thirty-seven million, eight hundred thirty-eight thousand, eighty-five".