195967399776 has 48 divisors (see below), whose sum is σ = 532152860400. Its totient is φ = 63069966848.

The previous prime is 195967399753. The next prime is 195967399781. The reversal of 195967399776 is 677993769591.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35192511 + ... + 35198078.

It is an arithmetic number, because the mean of its divisors is an integer number (11086517925).

Almost surely, 2^195967399776 is an apocalyptic number.

195967399776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

195967399776 is an abundant number, since it is smaller than the sum of its proper divisors (336185460624).

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

195967399776 is a wasteful number, since it uses less digits than its factorization.

195967399776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70390631 (or 70390623 counting only the distinct ones).

The product of its digits is 1215228420, while the sum is 78.

The spelling of 195967399776 in words is "one hundred ninety-five billion, nine hundred sixty-seven million, three hundred ninety-nine thousand, seven hundred seventy-six".