11700020471828 has 24 divisors (see below), whose sum is σ = 22066730640360. Its totient is φ = 5395921597440.

The previous prime is 11700020471813. The next prime is 11700020471837. The reversal of 11700020471828 is 82817402000711.

It can be written as a sum of positive squares in 4 ways, for example, as 2173772794384 + 9526247677444 = 1474372^2 + 3086462^2 .

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, 85094213 + ... + 85231596.

It is an arithmetic number, because the mean of its divisors is an integer number (919447110015).

Almost surely, 2^{11700020471828} is an apocalyptic number.

It is an amenable number.

11700020471828 is a deficient number, since it is larger than the sum of its proper divisors (10366710168532).

11700020471828 is a wasteful number, since it uses less digits than its factorization.

11700020471828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170327147 (or 170327145 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 41.

The spelling of 11700020471828 in words is "eleven trillion, seven hundred billion, twenty million, four hundred seventy-one thousand, eight hundred twenty-eight".