194136485400 has 1152 divisors, whose sum is σ = 802861113600. Its totient is φ = 42735513600.

The previous prime is 194136485381. The next prime is 194136485407. The reversal of 194136485400 is 4584631491.

194136485400 is a `hidden beast` number, since 1 + 9 + 41 + 3 + 64 + 8 + 540 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194136485407) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 833203684 + ... + 833203916.

It is an arithmetic number, because the mean of its divisors is an integer number (696928050).

Almost surely, 2^194136485400 is an apocalyptic number.

194136485400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194136485400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401430556800).

194136485400 is an abundant number, since it is smaller than the sum of its proper divisors (608724628200).

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

194136485400 is a wasteful number, since it uses less digits than its factorization.

194136485400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 194136485400 in words is "one hundred ninety-four billion, one hundred thirty-six million, four hundred eighty-five thousand, four hundred".