61843483865 has 8 divisors (see below), whose sum is σ = 75938045568. Its totient is φ = 48324210480.

The previous prime is 61843483843. The next prime is 61843483873. The reversal of 61843483865 is 56838434816.

61843483865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61843483865 - 2³⁰ = 60769742041 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 61843483865.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143821841 + ... + 143822270.

It is an arithmetic number, because the mean of its divisors is an integer number (9492255696).

Almost surely, 2^61843483865 is an apocalyptic number.

It is an amenable number.

61843483865 is a deficient number, since it is larger than the sum of its proper divisors (14094561703).

61843483865 is a wasteful number, since it uses less digits than its factorization.

61843483865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287644159.

The product of its digits is 13271040, while the sum is 56.

The spelling of 61843483865 in words is "sixty-one billion, eight hundred forty-three million, four hundred eighty-three thousand, eight hundred sixty-five".