827505740841 has 16 divisors (see below), whose sum is σ = 1190301651840. Its totient is φ = 508339324800.

The previous prime is 827505740837. The next prime is 827505740881. The reversal of 827505740841 is 148047505728.

It is a happy number.

It is not a de Polignac number, because 827505740841 - 2² = 827505740837 is a prime.

It is a super-2 number, since 2×827505740841² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (827505740801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18622885 + ... + 18667266.

It is an arithmetic number, because the mean of its divisors is an integer number (74393853240).

Almost surely, 2^827505740841 is an apocalyptic number.

It is an amenable number.

827505740841 is a deficient number, since it is larger than the sum of its proper divisors (362795910999).

827505740841 is a wasteful number, since it uses less digits than its factorization.

827505740841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37290736.

The product of its (nonzero) digits is 2508800, while the sum is 51.

The spelling of 827505740841 in words is "eight hundred twenty-seven billion, five hundred five million, seven hundred forty thousand, eight hundred forty-one".