191474629145 has 16 divisors (see below), whose sum is σ = 230685840000. Its totient is φ = 152569064064.

The previous prime is 191474629127. The next prime is 191474629147. The reversal of 191474629145 is 541926474191.

191474629145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 191474629145 - 2⁶ = 191474629081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (191474629147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9851477 + ... + 9870893.

It is an arithmetic number, because the mean of its divisors is an integer number (14417865000).

Almost surely, 2^191474629145 is an apocalyptic number.

It is an amenable number.

191474629145 is a deficient number, since it is larger than the sum of its proper divisors (39211210855).

191474629145 is a wasteful number, since it uses less digits than its factorization.

191474629145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27184.

The product of its digits is 2177280, while the sum is 53.

The spelling of 191474629145 in words is "one hundred ninety-one billion, four hundred seventy-four million, six hundred twenty-nine thousand, one hundred forty-five".