49666728456 has 48 divisors (see below), whose sum is σ = 134530671600. Its totient is φ = 16553531232.

The previous prime is 49666728413. The next prime is 49666728457. The reversal of 49666728456 is 65482766694.

It is a junction number, because it is equal to n+sod(n) for n = 49666728393 and 49666728402.

It is not an unprimeable number, because it can be changed into a prime (49666728457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614175 + ... + 690321.

It is an arithmetic number, because the mean of its divisors is an integer number (2802722325).

Almost surely, 2^49666728456 is an apocalyptic number.

It is an amenable number.

49666728456 is an abundant number, since it is smaller than the sum of its proper divisors (84863943144).

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

49666728456 is a wasteful number, since it uses less digits than its factorization.

49666728456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85218 (or 85211 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 49666728456 in words is "forty-nine billion, six hundred sixty-six million, seven hundred twenty-eight thousand, four hundred fifty-six".