2273658641 has 4 divisors (see below), whose sum is σ = 2273812800. Its totient is φ = 2273504484.

The previous prime is 2273658623. The next prime is 2273658643. The reversal of 2273658641 is 1468563722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1468563722 = 2 ⋅734281861.

It is a cyclic number.

It is not a de Polignac number, because 2273658641 - 2¹⁴ = 2273642257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2273658592 and 2273658601.

It is not an unprimeable number, because it can be changed into a prime (2273658643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52301 + ... + 85338.

It is an arithmetic number, because the mean of its divisors is an integer number (568453200).

Almost surely, 2^2273658641 is an apocalyptic number.

It is an amenable number.

2273658641 is a deficient number, since it is larger than the sum of its proper divisors (154159).

2273658641 is a wasteful number, since it uses less digits than its factorization.

2273658641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154158.

The product of its digits is 483840, while the sum is 44.

The square root of 2273658641 is about 47682.8967345735. The cubic root of 2273658641 is about 1314.9475208326.

The spelling of 2273658641 in words is "two billion, two hundred seventy-three million, six hundred fifty-eight thousand, six hundred forty-one".