2641866801 has 12 divisors (see below), whose sum is σ = 4097589552. Its totient is φ = 1509638088.

The previous prime is 2641866767. The next prime is 2641866811. The reversal of 2641866801 is 1086681462.

It is not a de Polignac number, because 2641866801 - 2¹⁴ = 2641850417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2641866811) 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 11 ways as a sum of consecutive naturals, for example, 8985795 + ... + 8986088.

It is an arithmetic number, because the mean of its divisors is an integer number (341465796).

Almost surely, 2^2641866801 is an apocalyptic number.

2641866801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2641866801 is a deficient number, since it is larger than the sum of its proper divisors (1455722751).

2641866801 is a wasteful number, since it uses less digits than its factorization.

2641866801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17971900 (or 17971893 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 2641866801 is about 51399.0933869460. The cubic root of 2641866801 is about 1382.4103365446.

The spelling of 2641866801 in words is "two billion, six hundred forty-one million, eight hundred sixty-six thousand, eight hundred one".