2105934409386 has 32 divisors (see below), whose sum is σ = 4682867857920. Its totient is φ = 701526094272.

The previous prime is 2105934409307. The next prime is 2105934409387. The reversal of 2105934409386 is 6839044395012.

2105934409386 is a `hidden beast` number, since 2 + 1 + 0 + 593 + 4 + 40 + 9 + 3 + 8 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2105934409387) 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, 12472090 + ... + 12639813.

It is an arithmetic number, because the mean of its divisors is an integer number (146339620560).

Almost surely, 2^{2105934409386} is an apocalyptic number.

2105934409386 is an abundant number, since it is smaller than the sum of its proper divisors (2576933448534).

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

2105934409386 is a wasteful number, since it uses less digits than its factorization.

2105934409386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25113467 (or 25113461 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 2105934409386 in words is "two trillion, one hundred five billion, nine hundred thirty-four million, four hundred nine thousand, three hundred eighty-six".