191698416012 has 48 divisors (see below), whose sum is σ = 453039910400. Its totient is φ = 63079248960.

The previous prime is 191698415989. The next prime is 191698416017. The reversal of 191698416012 is 210614896191.

It is not an unprimeable number, because it can be changed into a prime (191698416017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6459087 + ... + 6488697.

Almost surely, 2^191698416012 is an apocalyptic number.

191698416012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191698416012 is an abundant number, since it is smaller than the sum of its proper divisors (261341494388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191698416012 is a wasteful number, since it uses less digits than its factorization.

191698416012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36526 (or 36524 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 191698416012 in words is "one hundred ninety-one billion, six hundred ninety-eight million, four hundred sixteen thousand, twelve".