2101783539388 has 48 divisors (see below), whose sum is σ = 4144866072480. Its totient is φ = 926027990784.

The previous prime is 2101783539367. The next prime is 2101783539389. The reversal of 2101783539388 is 8839353871012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101783539389) 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, 10203718 + ... + 10407661.

It is an arithmetic number, because the mean of its divisors is an integer number (86351376510).

Almost surely, 2^{2101783539388} is an apocalyptic number.

It is an amenable number.

2101783539388 is a deficient number, since it is larger than the sum of its proper divisors (2043082533092).

2101783539388 is a wasteful number, since it uses less digits than its factorization.

2101783539388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20611486 (or 20611484 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 2101783539388 in words is "two trillion, one hundred one billion, seven hundred eighty-three million, five hundred thirty-nine thousand, three hundred eighty-eight".