54613649866 has 8 divisors (see below), whose sum is σ = 82278206820. Its totient is φ = 27187580928.

The previous prime is 54613649861. The next prime is 54613649873. The reversal of 54613649866 is 66894631645.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38893756225 + 15719893641 = 197215^2 + 125379^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 54613649866.

It is not an unprimeable number, because it can be changed into a prime (54613649861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59621431 + ... + 59622346.

Almost surely, 2^54613649866 is an apocalyptic number.

54613649866 is a deficient number, since it is larger than the sum of its proper divisors (27664556954).

54613649866 is a wasteful number, since it uses less digits than its factorization.

54613649866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119244008.

The product of its digits is 22394880, while the sum is 58.

The spelling of 54613649866 in words is "fifty-four billion, six hundred thirteen million, six hundred forty-nine thousand, eight hundred sixty-six".