49666545454686 has 8 divisors (see below), whose sum is σ = 99333090909384. Its totient is φ = 16555515151560.

The previous prime is 49666545454681. The next prime is 49666545454693. The reversal of 49666545454686 is 68645454566694.

It is a happy number.

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

49666545454686 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49666545454681) 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, 4138878787885 + ... + 4138878787896.

It is an arithmetic number, because the mean of its divisors is an integer number (12416636363673).

Almost surely, 2^{49666545454686} is an apocalyptic number.

49666545454686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49666545454686 is a wasteful number, since it uses less digits than its factorization.

49666545454686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277757575786.

The product of its digits is 17915904000, while the sum is 78.

The spelling of 49666545454686 in words is "forty-nine trillion, six hundred sixty-six billion, five hundred forty-five million, four hundred fifty-four thousand, six hundred eighty-six".