41378475889 has 3 divisors (see below), whose sum is σ = 41378679307. Its totient is φ = 41378272472.

The previous prime is 41378475871. The next prime is 41378475911. The reversal of 41378475889 is 98857487314.

The square root of 41378475889 is 203417.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 41365458225 + 13017664 = 203385^2 + 3608^2 .

It is not a de Polignac number, because 41378475889 - 2²⁹ = 40841604977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41378475889.

It is not an unprimeable number, because it can be changed into a prime (41378475389) 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 2 ways as a sum of consecutive naturals, for example, 101709 + ... + 305125.

Almost surely, 2^41378475889 is an apocalyptic number.

41378475889 is the 203417-th square number.

41378475889 is the 101709-th centered octagonal number.

It is an amenable number.

41378475889 is a deficient number, since it is larger than the sum of its proper divisors (203418).

41378475889 is an frugal number, since it uses more digits than its factorization.

41378475889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406834 (or 203417 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 64.

Multiplying 41378475889 by its sum of digits (64), we get a square (2648222456896 = 1627336²).

The spelling of 41378475889 in words is "forty-one billion, three hundred seventy-eight million, four hundred seventy-five thousand, eight hundred eighty-nine".