191856553348 has 24 divisors (see below), whose sum is σ = 350828779392. Its totient is φ = 91631236224.

The previous prime is 191856553331. The next prime is 191856553363. The reversal of 191856553348 is 843355658191.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 191856553292 and 191856553301.

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, 1367365 + ... + 1501132.

It is an arithmetic number, because the mean of its divisors is an integer number (14617865808).

Almost surely, 2^191856553348 is an apocalyptic number.

It is an amenable number.

191856553348 is a deficient number, since it is larger than the sum of its proper divisors (158972226044).

191856553348 is a wasteful number, since it uses less digits than its factorization.

191856553348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869251 (or 2869249 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 58.

The spelling of 191856553348 in words is "one hundred ninety-one billion, eight hundred fifty-six million, five hundred fifty-three thousand, three hundred forty-eight".