41091856769 has 8 divisors (see below), whose sum is σ = 42120456840. Its totient is φ = 40064512000.

The previous prime is 41091856759. The next prime is 41091856783. The reversal of 41091856769 is 96765819014.

It can be written as a sum of positive squares in 4 ways, for example, as 2169696400 + 38922160369 = 46580^2 + 197287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41091856769 - 2⁴ = 41091856753 is a prime.

It is a super-2 number, since 2×41091856769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41091856739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247364 + ... + 378645.

It is an arithmetic number, because the mean of its divisors is an integer number (5265057105).

Almost surely, 2^41091856769 is an apocalyptic number.

It is an amenable number.

41091856769 is a deficient number, since it is larger than the sum of its proper divisors (1028600071).

41091856769 is a wasteful number, since it uses less digits than its factorization.

41091856769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627651.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 41091856769 in words is "forty-one billion, ninety-one million, eight hundred fifty-six thousand, seven hundred sixty-nine".