188690996469 has 8 divisors (see below), whose sum is σ = 252308879200. Its totient is φ = 125433555696.

The previous prime is 188690996453. The next prime is 188690996479. The reversal of 188690996469 is 964699096881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 188690996469 - 2⁴ = 188690996453 is a prime.

It is a super-2 number, since 2×188690996469² (a number of 23 digits) contains 22 as substring.

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 188690996469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188690996419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90109267 + ... + 90111360.

It is an arithmetic number, because the mean of its divisors is an integer number (31538609900).

Almost surely, 2^188690996469 is an apocalyptic number.

It is an amenable number.

188690996469 is a deficient number, since it is larger than the sum of its proper divisors (63617882731).

188690996469 is a wasteful number, since it uses less digits than its factorization.

188690996469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180220979.

The product of its (nonzero) digits is 362797056, while the sum is 75.

The spelling of 188690996469 in words is "one hundred eighty-eight billion, six hundred ninety million, nine hundred ninety-six thousand, four hundred sixty-nine".