190930468817 has 16 divisors (see below), whose sum is σ = 225175992000. Its totient is φ = 159993455040.

The previous prime is 190930468739. The next prime is 190930468831. The reversal of 190930468817 is 718864039091.

It is not a de Polignac number, because 190930468817 - 2¹² = 190930464721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190930468837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12337442 + ... + 12352907.

It is an arithmetic number, because the mean of its divisors is an integer number (14073499500).

Almost surely, 2^190930468817 is an apocalyptic number.

It is an amenable number.

190930468817 is a deficient number, since it is larger than the sum of its proper divisors (34245523183).

190930468817 is a wasteful number, since it uses less digits than its factorization.

190930468817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24690416.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 190930468817 in words is "one hundred ninety billion, nine hundred thirty million, four hundred sixty-eight thousand, eight hundred seventeen".