194497130400 has 288 divisors, whose sum is σ = 672628199040. Its totient is φ = 48723333120.

The previous prime is 194497130357. The next prime is 194497130419. The reversal of 194497130400 is 4031794491.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2537437 + ... + 2612963.

It is an arithmetic number, because the mean of its divisors is an integer number (2335514580).

Almost surely, 2^194497130400 is an apocalyptic number.

194497130400 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 194497130400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336314099520).

194497130400 is an abundant number, since it is smaller than the sum of its proper divisors (478131068640).

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

194497130400 is a wasteful number, since it uses less digits than its factorization.

194497130400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75616 (or 75603 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 194497130400 in words is "one hundred ninety-four billion, four hundred ninety-seven million, one hundred thirty thousand, four hundred".