41547782921 has 8 divisors (see below), whose sum is σ = 42177285600. Its totient is φ = 40918556448.

The previous prime is 41547782909. The next prime is 41547782963. The reversal of 41547782921 is 12928774514.

It is a happy number.

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 41547782921 - 2¹⁴ = 41547766537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41547782921.

It is not an unprimeable number, because it can be changed into a prime (41547781921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244790 + ... + 378176.

It is an arithmetic number, because the mean of its divisors is an integer number (5272160700).

Almost surely, 2^41547782921 is an apocalyptic number.

It is an amenable number.

41547782921 is a deficient number, since it is larger than the sum of its proper divisors (629502679).

41547782921 is a wasteful number, since it uses less digits than its factorization.

41547782921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138103.

The product of its digits is 1128960, while the sum is 50.

The spelling of 41547782921 in words is "forty-one billion, five hundred forty-seven million, seven hundred eighty-two thousand, nine hundred twenty-one".