41380473781 has 4 divisors (see below), whose sum is σ = 42807386700. Its totient is φ = 39953560864.

The previous prime is 41380473769. The next prime is 41380473791. The reversal of 41380473781 is 18737408314.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17301193156 + 24079280625 = 131534^2 + 155175^2 .

It is a cyclic number.

It is not a de Polignac number, because 41380473781 - 2¹¹ = 41380471733 is a prime.

It is a super-2 number, since 2×41380473781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41380473791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713456416 + ... + 713456473.

It is an arithmetic number, because the mean of its divisors is an integer number (10701846675).

Almost surely, 2^41380473781 is an apocalyptic number.

It is an amenable number.

41380473781 is a deficient number, since it is larger than the sum of its proper divisors (1426912919).

41380473781 is a wasteful number, since it uses less digits than its factorization.

41380473781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426912918.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 41380473781 in words is "forty-one billion, three hundred eighty million, four hundred seventy-three thousand, seven hundred eighty-one".