194061394576 has 45 divisors (see below), whose sum is σ = 437408521641. Its totient is φ = 83163882816.

The previous prime is 194061394573. The next prime is 194061394577. The reversal of 194061394576 is 675493160491.

The square root of 194061394576 is 440524.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20192410000 + 173868984576 = 142100^2 + 416976^2 .

It is not an unprimeable number, because it can be changed into a prime (194061394573) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12326806 + ... + 12342538.

Almost surely, 2^194061394576 is an apocalyptic number.

194061394576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

194061394576 is the 440524-th square number.

It is an amenable number.

194061394576 is an abundant number, since it is smaller than the sum of its proper divisors (243347127065).

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

194061394576 is an frugal number, since it uses more digits than its factorization.

194061394576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31488 (or 15742 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 194061394576 in words is "one hundred ninety-four billion, sixty-one million, three hundred ninety-four thousand, five hundred seventy-six".