195019423965 has 48 divisors (see below), whose sum is σ = 340775667648. Its totient is φ = 103167898368.

The previous prime is 195019423927. The next prime is 195019423981. The reversal of 195019423965 is 569324910591.

195019423965 is a `hidden beast` number, since 1 + 9 + 501 + 9 + 42 + 3 + 96 + 5 = 666.

It is not a de Polignac number, because 195019423965 - 2²⁶ = 194952315101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8045554 + ... + 8069756.

It is an arithmetic number, because the mean of its divisors is an integer number (7099493076).

Almost surely, 2^195019423965 is an apocalyptic number.

195019423965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195019423965 is a deficient number, since it is larger than the sum of its proper divisors (145756243683).

195019423965 is a wasteful number, since it uses less digits than its factorization.

195019423965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25658 (or 25655 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 195019423965 in words is "one hundred ninety-five billion, nineteen million, four hundred twenty-three thousand, nine hundred sixty-five".