41961965777 has 8 divisors (see below), whose sum is σ = 42847284936. Its totient is φ = 41085038592.

The previous prime is 41961965761. The next prime is 41961965779. The reversal of 41961965777 is 77756916914.

It can be written as a sum of positive squares in 4 ways, for example, as 11602736656 + 30359229121 = 107716^2 + 174239^2 .

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 41961965777 - 2⁴ = 41961965761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41961965779) 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, 2087888 + ... + 2107889.

It is an arithmetic number, because the mean of its divisors is an integer number (5355910617).

Almost surely, 2^41961965777 is an apocalyptic number.

It is an amenable number.

41961965777 is a deficient number, since it is larger than the sum of its proper divisors (885319159).

41961965777 is a wasteful number, since it uses less digits than its factorization.

41961965777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195987.

The product of its digits is 20003760, while the sum is 62.

The spelling of 41961965777 in words is "forty-one billion, nine hundred sixty-one million, nine hundred sixty-five thousand, seven hundred seventy-seven".