195693350421 has 16 divisors (see below), whose sum is σ = 263250321408. Its totient is φ = 129301426800.

The previous prime is 195693350383. The next prime is 195693350449. The reversal of 195693350421 is 124053396591.

It is not a de Polignac number, because 195693350421 - 2⁶ = 195693350357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195693350221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105466 + ... + 634436.

It is an arithmetic number, because the mean of its divisors is an integer number (16453145088).

Almost surely, 2^195693350421 is an apocalyptic number.

It is an amenable number.

195693350421 is a deficient number, since it is larger than the sum of its proper divisors (67556970987).

195693350421 is a wasteful number, since it uses less digits than its factorization.

195693350421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530072.

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 195693350421 in words is "one hundred ninety-five billion, six hundred ninety-three million, three hundred fifty thousand, four hundred twenty-one".