195219653950 has 12 divisors (see below), whose sum is σ = 363108556440. Its totient is φ = 78087861560.

The previous prime is 195219653903. The next prime is 195219653957. The reversal of 195219653950 is 59356912591.

It is a super-2 number, since 2×195219653950² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 195219653891 and 195219653900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195219653957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1952196490 + ... + 1952196589.

It is an arithmetic number, because the mean of its divisors is an integer number (30259046370).

Almost surely, 2^195219653950 is an apocalyptic number.

195219653950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195219653950 is a deficient number, since it is larger than the sum of its proper divisors (167888902490).

195219653950 is a wasteful number, since it uses less digits than its factorization.

195219653950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904393091 (or 3904393086 counting only the distinct ones).

The product of its (nonzero) digits is 3280500, while the sum is 55.

The spelling of 195219653950 in words is "one hundred ninety-five billion, two hundred nineteen million, six hundred fifty-three thousand, nine hundred fifty".