194961103936 has 63 divisors (see below), whose sum is σ = 391593681759. Its totient is φ = 96306044928.

The previous prime is 194961103933. The next prime is 194961103937. The reversal of 194961103936 is 639301169491.

The square root of 194961103936 is 441544.

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

It can be written as a sum of positive squares in 4 ways, for example, as 32184360000 + 162776743936 = 179400^2 + 403456^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194961103933) 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, 342637860 + ... + 342638428.

Almost surely, 2^194961103936 is an apocalyptic number.

194961103936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

194961103936 is the 441544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194961103936

194961103936 is an abundant number, since it is smaller than the sum of its proper divisors (196632577823).

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

194961103936 is an frugal number, since it uses more digits than its factorization.

194961103936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 52.

The spelling of 194961103936 in words is "one hundred ninety-four billion, nine hundred sixty-one million, one hundred three thousand, nine hundred thirty-six".