195038638080 has 832 divisors, whose sum is σ = 745069086720. Its totient is φ = 42939187200.

The previous prime is 195038638061. The next prime is 195038638097. The reversal of 195038638080 is 80836830591.

195038638080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (832).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 694087540 + ... + 694087820.

Almost surely, 2^195038638080 is an apocalyptic number.

195038638080 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 195038638080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372534543360).

195038638080 is an abundant number, since it is smaller than the sum of its proper divisors (550030448640).

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

195038638080 is a wasteful number, since it uses less digits than its factorization.

195038638080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 195038638080 in words is "one hundred ninety-five billion, thirty-eight million, six hundred thirty-eight thousand, eighty".