41578319947 has 4 divisors (see below), whose sum is σ = 41591783160. Its totient is φ = 41564856736.

The previous prime is 41578319921. The next prime is 41578320031. The reversal of 41578319947 is 74991387514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41578319947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41578319891 and 41578319900.

It is not an unprimeable number, because it can be changed into a prime (41578311947) 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, 6726973 + ... + 6733150.

It is an arithmetic number, because the mean of its divisors is an integer number (10397945790).

Almost surely, 2^41578319947 is an apocalyptic number.

41578319947 is a deficient number, since it is larger than the sum of its proper divisors (13463213).

41578319947 is a wasteful number, since it uses less digits than its factorization.

41578319947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13463212.

The product of its digits is 7620480, while the sum is 58.

The spelling of 41578319947 in words is "forty-one billion, five hundred seventy-eight million, three hundred nineteen thousand, nine hundred forty-seven".