49561723780 has 12 divisors (see below), whose sum is σ = 104079619980. Its totient is φ = 19824689504.

The previous prime is 49561723751. The next prime is 49561723793. The reversal of 49561723780 is 8732716594.

It can be written as a sum of positive squares in 2 ways, for example, as 15364098304 + 34197625476 = 123952^2 + 184926^2 .

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 3 ways as a sum of consecutive naturals, for example, 1239043075 + ... + 1239043114.

It is an arithmetic number, because the mean of its divisors is an integer number (8673301665).

It is a 1-persistent number, because it is pandigital, but 2⋅49561723780 = 99123447560 is not.

Almost surely, 2^49561723780 is an apocalyptic number.

It is an amenable number.

49561723780 is an abundant number, since it is smaller than the sum of its proper divisors (54517896200).

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

49561723780 is a wasteful number, since it uses less digits than its factorization.

49561723780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478086198 (or 2478086196 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 49561723780 in words is "forty-nine billion, five hundred sixty-one million, seven hundred twenty-three thousand, seven hundred eighty".