49561205016 has 64 divisors (see below), whose sum is σ = 127521475200. Its totient is φ = 16044689408.

The previous prime is 49561205003. The next prime is 49561205053. The reversal of 49561205016 is 61050216594.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 93321 + ... + 328376.

It is an arithmetic number, because the mean of its divisors is an integer number (1992523050).

Almost surely, 2^49561205016 is an apocalyptic number.

It is an amenable number.

49561205016 is an abundant number, since it is smaller than the sum of its proper divisors (77960270184).

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

49561205016 is a wasteful number, since it uses less digits than its factorization.

49561205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421848 (or 421844 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 49561205016 in words is "forty-nine billion, five hundred sixty-one million, two hundred five thousand, sixteen".