191361002469 has 96 divisors (see below), whose sum is σ = 341110296576. Its totient is φ = 94250096640.

The previous prime is 191361002461. The next prime is 191361002473. The reversal of 191361002469 is 964200163191.

It is not a de Polignac number, because 191361002469 - 2³ = 191361002461 is a prime.

It is a super-2 number, since 2×191361002469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 191361002469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191361002461) 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 95 ways as a sum of consecutive naturals, for example, 4102659 + ... + 4149039.

It is an arithmetic number, because the mean of its divisors is an integer number (3553232256).

Almost surely, 2^191361002469 is an apocalyptic number.

It is an amenable number.

191361002469 is a deficient number, since it is larger than the sum of its proper divisors (149749294107).

191361002469 is a wasteful number, since it uses less digits than its factorization.

191361002469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46555 (or 46548 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 191361002469 in words is "one hundred ninety-one billion, three hundred sixty-one million, two thousand, four hundred sixty-nine".