190405699388 has 24 divisors (see below), whose sum is σ = 350350805280. Its totient is φ = 90413104320.

The previous prime is 190405699373. The next prime is 190405699397. The reversal of 190405699388 is 883996504091.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 190405699388.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13447256 + ... + 13461407.

It is an arithmetic number, because the mean of its divisors is an integer number (14597950220).

Almost surely, 2^190405699388 is an apocalyptic number.

It is an amenable number.

190405699388 is a deficient number, since it is larger than the sum of its proper divisors (159945105892).

190405699388 is a wasteful number, since it uses less digits than its factorization.

190405699388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26908757 (or 26908755 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 190405699388 in words is "one hundred ninety billion, four hundred five million, six hundred ninety-nine thousand, three hundred eighty-eight".