195948994000 has 40 divisors (see below), whose sum is σ = 473804672328. Its totient is φ = 78379596800.

The previous prime is 195948993983. The next prime is 195948994081. The reversal of 195948994000 is 499849591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4896080784 + 191052913216 = 69972^2 + 437096^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×195948994000² (a number of 23 digits) contains 22 as substring.

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, 48985249 + ... + 48989248.

Almost surely, 2^195948994000 is an apocalyptic number.

195948994000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195948994000 is an abundant number, since it is smaller than the sum of its proper divisors (277855678328).

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

195948994000 is an equidigital number, since it uses as much as digits as its factorization.

195948994000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97974520 (or 97974504 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 58.

It can be divided in two parts, 1959489 and 94000, that added together give a square (2053489 = 1433²).

The spelling of 195948994000 in words is "one hundred ninety-five billion, nine hundred forty-eight million, nine hundred ninety-four thousand".