41978513611 has 4 divisors (see below), whose sum is σ = 41978935224. Its totient is φ = 41978092000.

The previous prime is 41978513597. The next prime is 41978513617. The reversal of 41978513611 is 11631587914.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 41978513611 - 2⁷ = 41978513483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41978513617) 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 3 ways as a sum of consecutive naturals, for example, 30996 + ... + 291406.

It is an arithmetic number, because the mean of its divisors is an integer number (10494733806).

Almost surely, 2^41978513611 is an apocalyptic number.

41978513611 is a deficient number, since it is larger than the sum of its proper divisors (421613).

41978513611 is a wasteful number, since it uses less digits than its factorization.

41978513611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421612.

The product of its digits is 181440, while the sum is 46.

The spelling of 41978513611 in words is "forty-one billion, nine hundred seventy-eight million, five hundred thirteen thousand, six hundred eleven".