49881666666668 has 24 divisors (see below), whose sum is σ = 87463638486000. Its totient is φ = 24892059146240.

The previous prime is 49881666666653. The next prime is 49881666666673. The reversal of 49881666666668 is 86666666618894.

It is a self number, because there is not a number n which added to its sum of digits gives 49881666666668.

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, 58971980 + ... + 59811852.

It is an arithmetic number, because the mean of its divisors is an integer number (3644318270250).

Almost surely, 2^{49881666666668} is an apocalyptic number.

It is an amenable number.

49881666666668 is a deficient number, since it is larger than the sum of its proper divisors (37581971819332).

49881666666668 is a wasteful number, since it uses less digits than its factorization.

49881666666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868897 (or 868895 counting only the distinct ones).

The product of its digits is 30958682112, while the sum is 86.

The spelling of 49881666666668 in words is "forty-nine trillion, eight hundred eighty-one billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-eight".