2109815926982 has 16 divisors (see below), whose sum is σ = 3249764992320. Its totient is φ = 1026734306472.

The previous prime is 2109815926949. The next prime is 2109815927027. The reversal of 2109815926982 is 2896295189012.

It is a happy number.

It is a congruent 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, 43319732 + ... + 43368407.

It is an arithmetic number, because the mean of its divisors is an integer number (203110312020).

Almost surely, 2^{2109815926982} is an apocalyptic number.

2109815926982 is a deficient number, since it is larger than the sum of its proper divisors (1139949065338).

2109815926982 is a wasteful number, since it uses less digits than its factorization.

2109815926982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86688467.

The product of its (nonzero) digits is 11197440, while the sum is 62.

The spelling of 2109815926982 in words is "two trillion, one hundred nine billion, eight hundred fifteen million, nine hundred twenty-six thousand, nine hundred eighty-two".