191963496307 has 16 divisors (see below), whose sum is σ = 221747176800. Its totient is φ = 164236515840.

The previous prime is 191963496247. The next prime is 191963496371. The reversal of 191963496307 is 703694369191.

It is a de Polignac number, because none of the positive numbers 2^k-191963496307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191763496307) 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, 5298169 + ... + 5334277.

It is an arithmetic number, because the mean of its divisors is an integer number (13859198550).

Almost surely, 2^191963496307 is an apocalyptic number.

191963496307 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

191963496307 is a deficient number, since it is larger than the sum of its proper divisors (29783680493).

191963496307 is a wasteful number, since it uses less digits than its factorization.

191963496307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64566.

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 191963496307 in words is "one hundred ninety-one billion, nine hundred sixty-three million, four hundred ninety-six thousand, three hundred seven".