2105046657 has 16 divisors (see below), whose sum is σ = 3564100480. Its totient is φ = 1202883696.

The previous prime is 2105046649. The next prime is 2105046677. The reversal of 2105046657 is 7566405012.

It is a happy number.

It is not a de Polignac number, because 2105046657 - 2³ = 2105046649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105046617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5568718 + ... + 5569095.

It is an arithmetic number, because the mean of its divisors is an integer number (222756280).

Almost surely, 2^2105046657 is an apocalyptic number.

2105046657 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2105046657 is a deficient number, since it is larger than the sum of its proper divisors (1459053823).

2105046657 is a wasteful number, since it uses less digits than its factorization.

2105046657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137829 (or 11137823 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2105046657 is about 45880.7874496504. The cubic root of 2105046657 is about 1281.6041608230.

The spelling of 2105046657 in words is "two billion, one hundred five million, forty-six thousand, six hundred fifty-seven".