2267854861 has 2 divisors, whose sum is σ = 2267854862. Its totient is φ = 2267854860.

The previous prime is 2267854837. The next prime is 2267854907. The reversal of 2267854861 is 1684587622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2266712100 + 1142761 = 47610^2 + 1069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2267854861 is a prime.

It is a super-2 number, since 2×2267854861² = 10286331341122658642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2267854261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133927430 + 1133927431.

It is an arithmetic number, because the mean of its divisors is an integer number (1133927431).

Almost surely, 2^2267854861 is an apocalyptic number.

It is an amenable number.

2267854861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2267854861 is an equidigital number, since it uses as much as digits as its factorization.

2267854861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 2267854861 is about 47621.9997585150. Note that the first 3 decimals coincide. The cubic root of 2267854861 is about 1313.8277149563.

The spelling of 2267854861 in words is "two billion, two hundred sixty-seven million, eight hundred fifty-four thousand, eight hundred sixty-one".