2061854641 has 24 divisors (see below), whose sum is σ = 2599615872. Its totient is φ = 1600737600.

The previous prime is 2061854623. The next prime is 2061854647. The reversal of 2061854641 is 1464581602.

It is not a de Polignac number, because 2061854641 - 2¹¹ = 2061852593 is a prime.

It is a super-2 number, since 2×2061854641² = 8502489121226477762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2061854641.

It is not an unprimeable number, because it can be changed into a prime (2061854647) 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 23 ways as a sum of consecutive naturals, for example, 233676 + ... + 242338.

It is an arithmetic number, because the mean of its divisors is an integer number (108317328).

Almost surely, 2^2061854641 is an apocalyptic number.

It is an amenable number.

2061854641 is a deficient number, since it is larger than the sum of its proper divisors (537761231).

2061854641 is a wasteful number, since it uses less digits than its factorization.

2061854641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 2061854641 is about 45407.6495868262. The cubic root of 2061854641 is about 1272.7780633984.

The spelling of 2061854641 in words is "two billion, sixty-one million, eight hundred fifty-four thousand, six hundred forty-one".