41749128961 has 4 divisors (see below), whose sum is σ = 41761023424. Its totient is φ = 41737234500.

The previous prime is 41749128959. The next prime is 41749128977. The reversal of 41749128961 is 16982194714.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41749128961 - 2¹ = 41749128959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41749128899 and 41749128908.

It is not an unprimeable number, because it can be changed into a prime (41749128901) 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, 5941965 + ... + 5948986.

It is an arithmetic number, because the mean of its divisors is an integer number (10440255856).

Almost surely, 2^41749128961 is an apocalyptic number.

It is an amenable number.

41749128961 is a deficient number, since it is larger than the sum of its proper divisors (11894463).

41749128961 is a wasteful number, since it uses less digits than its factorization.

41749128961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11894462.

The product of its digits is 870912, while the sum is 52.

The spelling of 41749128961 in words is "forty-one billion, seven hundred forty-nine million, one hundred twenty-eight thousand, nine hundred sixty-one".