191928201967 has 2 divisors, whose sum is σ = 191928201968. Its totient is φ = 191928201966.

The previous prime is 191928201917. The next prime is 191928202087. The reversal of 191928201967 is 769102829191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 191928201967 - 2¹¹ = 191928199919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191928201917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95964100983 + 95964100984.

It is an arithmetic number, because the mean of its divisors is an integer number (95964100984).

Almost surely, 2^191928201967 is an apocalyptic number.

191928201967 is a deficient number, since it is larger than the sum of its proper divisors (1).

191928201967 is an equidigital number, since it uses as much as digits as its factorization.

191928201967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 191928201967 in words is "one hundred ninety-one billion, nine hundred twenty-eight million, two hundred one thousand, nine hundred sixty-seven".