2109732780044 has 24 divisors (see below), whose sum is σ = 3711418547760. Its totient is φ = 1049329342656.

The previous prime is 2109732780031. The next prime is 2109732780053. The reversal of 2109732780044 is 4400872379012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361942 + ... + 4821410.

It is an arithmetic number, because the mean of its divisors is an integer number (154642439490).

Almost surely, 2^{2109732780044} is an apocalyptic number.

It is an amenable number.

2109732780044 is a deficient number, since it is larger than the sum of its proper divisors (1601685767716).

2109732780044 is a wasteful number, since it uses less digits than its factorization.

2109732780044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465497 (or 465495 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 2109732780044 in words is "two trillion, one hundred nine billion, seven hundred thirty-two million, seven hundred eighty thousand, forty-four".