61818676241 has 8 divisors (see below), whose sum is σ = 74368332480. Its totient is φ = 50198624208.

The previous prime is 61818676237. The next prime is 61818676253. The reversal of 61818676241 is 14267681816.

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 61818676241 - 2² = 61818676237 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 61818676241.

It is not an unprimeable number, because it can be changed into a prime (61818676541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232400906 + ... + 232401171.

It is an arithmetic number, because the mean of its divisors is an integer number (9296041560).

Almost surely, 2^61818676241 is an apocalyptic number.

It is an amenable number.

61818676241 is a deficient number, since it is larger than the sum of its proper divisors (12549656239).

61818676241 is a wasteful number, since it uses less digits than its factorization.

61818676241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464802103.

The product of its digits is 774144, while the sum is 50.

The spelling of 61818676241 in words is "sixty-one billion, eight hundred eighteen million, six hundred seventy-six thousand, two hundred forty-one".