2108356705 has 64 divisors (see below), whose sum is σ = 3171571200. Its totient is φ = 1310091264.

The previous prime is 2108356703. The next prime is 2108356729. The reversal of 2108356705 is 5076538012.

It is a cyclic number.

It is not a de Polignac number, because 2108356705 - 2¹ = 2108356703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2108356703) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9287802 + ... + 9288028.

It is an arithmetic number, because the mean of its divisors is an integer number (49555800).

Almost surely, 2^2108356705 is an apocalyptic number.

It is an amenable number.

2108356705 is a deficient number, since it is larger than the sum of its proper divisors (1063214495).

2108356705 is a wasteful number, since it uses less digits than its factorization.

2108356705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2108356705 is about 45916.8455471410. The cubic root of 2108356705 is about 1282.2755552398.

The spelling of 2108356705 in words is "two billion, one hundred eight million, three hundred fifty-six thousand, seven hundred five".