41998579447 has 4 divisors (see below), whose sum is σ = 45816632136. Its totient is φ = 38180526760.

The previous prime is 41998579421. The next prime is 41998579463. The reversal of 41998579447 is 74497589914.

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

It is a cyclic number.

It is not a de Polignac number, because 41998579447 - 2¹⁵ = 41998546679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41998579487) 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, 1909026328 + ... + 1909026349.

It is an arithmetic number, because the mean of its divisors is an integer number (11454158034).

Almost surely, 2^41998579447 is an apocalyptic number.

41998579447 is a deficient number, since it is larger than the sum of its proper divisors (3818052689).

41998579447 is a wasteful number, since it uses less digits than its factorization.

41998579447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818052688.

The product of its digits is 91445760, while the sum is 67.

The spelling of 41998579447 in words is "forty-one billion, nine hundred ninety-eight million, five hundred seventy-nine thousand, four hundred forty-seven".