1826478481 has 2 divisors, whose sum is σ = 1826478482. Its totient is φ = 1826478480.

The previous prime is 1826478473. The next prime is 1826478529. The reversal of 1826478481 is 1848746281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1811268481 + 15210000 = 42559^2 + 3900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1826478481 - 2³ = 1826478473 is a prime.

It is a super-2 number, since 2×1826478481² = 6672047283112134722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1826478781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913239240 + 913239241.

It is an arithmetic number, because the mean of its divisors is an integer number (913239241).

Almost surely, 2^1826478481 is an apocalyptic number.

It is an amenable number.

1826478481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1826478481 is an equidigital number, since it uses as much as digits as its factorization.

1826478481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 688128, while the sum is 49.

The square root of 1826478481 is about 42737.3195345707. The cubic root of 1826478481 is about 1222.3761093806.

The spelling of 1826478481 in words is "one billion, eight hundred twenty-six million, four hundred seventy-eight thousand, four hundred eighty-one".