41779015613 has 4 divisors (see below), whose sum is σ = 41847171228. Its totient is φ = 41710860000.

The previous prime is 41779015541. The next prime is 41779015637. The reversal of 41779015613 is 31651097714.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31651097714 = 2 ⋅15825548857.

It can be written as a sum of positive squares in 2 ways, for example, as 7730278084 + 34048737529 = 87922^2 + 184523^2 .

It is a cyclic number.

It is not a de Polignac number, because 41779015613 - 2³² = 37484048317 is a prime.

It is a super-2 number, since 2×41779015613² (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 (41779005613) 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, 34076888 + ... + 34078113.

It is an arithmetic number, because the mean of its divisors is an integer number (10461792807).

Almost surely, 2^41779015613 is an apocalyptic number.

It is an amenable number.

41779015613 is a deficient number, since it is larger than the sum of its proper divisors (68155615).

41779015613 is an equidigital number, since it uses as much as digits as its factorization.

41779015613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68155614.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 41779015613 in words is "forty-one billion, seven hundred seventy-nine million, fifteen thousand, six hundred thirteen".