188690969513 has 16 divisors (see below), whose sum is σ = 194077593600. Its totient is φ = 183363276096.

The previous prime is 188690969491. The next prime is 188690969609. The reversal of 188690969513 is 315969096881.

It is a cyclic number.

It is not a de Polignac number, because 188690969513 - 2²² = 188686775209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 188690969513.

It is not an unprimeable number, because it can be changed into a prime (188690969113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10712888 + ... + 10730486.

It is an arithmetic number, because the mean of its divisors is an integer number (12129849600).

Almost surely, 2^188690969513 is an apocalyptic number.

It is an amenable number.

188690969513 is a deficient number, since it is larger than the sum of its proper divisors (5386624087).

188690969513 is a wasteful number, since it uses less digits than its factorization.

188690969513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19256.

The product of its (nonzero) digits is 25194240, while the sum is 65.

The spelling of 188690969513 in words is "one hundred eighty-eight billion, six hundred ninety million, nine hundred sixty-nine thousand, five hundred thirteen".