83728813660 has 12 divisors (see below), whose sum is σ = 175830508728. Its totient is φ = 33491525456.

The previous prime is 83728813657. The next prime is 83728813697. The reversal of 83728813660 is 6631882738.

It is a super-2 number, since 2×83728813660² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83728813598 and 83728813607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093220322 + ... + 2093220361.

It is an arithmetic number, because the mean of its divisors is an integer number (14652542394).

Almost surely, 2^83728813660 is an apocalyptic number.

It is an amenable number.

83728813660 is an abundant number, since it is smaller than the sum of its proper divisors (92101695068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83728813660 is a wasteful number, since it uses less digits than its factorization.

83728813660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186440692 (or 4186440690 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 83728813660 in words is "eighty-three billion, seven hundred twenty-eight million, eight hundred thirteen thousand, six hundred sixty".