49856704656 has 40 divisors (see below), whose sum is σ = 140505260064. Its totient is φ = 15108092160.

The previous prime is 49856704637. The next prime is 49856704693. The reversal of 49856704656 is 65640765894.

It is a super-2 number, since 2×49856704656² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49856704656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47212261 + ... + 47213316.

Almost surely, 2^49856704656 is an apocalyptic number.

It is an amenable number.

49856704656 is an abundant number, since it is smaller than the sum of its proper divisors (90648555408).

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

49856704656 is a wasteful number, since it uses less digits than its factorization.

49856704656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94425599 (or 94425593 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 49856704656 in words is "forty-nine billion, eight hundred fifty-six million, seven hundred four thousand, six hundred fifty-six".