2106377647 has 8 divisors (see below), whose sum is σ = 2298257280. Its totient is φ = 1914563160.

The previous prime is 2106377629. The next prime is 2106377657. The reversal of 2106377647 is 7467736012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2106377647 is a prime.

It is a super-3 number, since 3×2106377647³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106377617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72304 + ... + 97162.

It is an arithmetic number, because the mean of its divisors is an integer number (287282160).

Almost surely, 2^2106377647 is an apocalyptic number.

2106377647 is a deficient number, since it is larger than the sum of its proper divisors (191879633).

2106377647 is a wasteful number, since it uses less digits than its factorization.

2106377647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32573.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 2106377647 is about 45895.2900306774. The cubic root of 2106377647 is about 1281.8742170590.

The spelling of 2106377647 in words is "two billion, one hundred six million, three hundred seventy-seven thousand, six hundred forty-seven".