49275641856 has 672 divisors, whose sum is σ = 169434296640. Its totient is φ = 12639535104.

The previous prime is 49275641803. The next prime is 49275641861. The reversal of 49275641856 is 65814657294.

It is a tau number, because it is divible by the number of its divisors (672).

It is a junction number, because it is equal to n+sod(n) for n = 49275641796 and 49275641805.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 593682391 + ... + 593682473.

It is an arithmetic number, because the mean of its divisors is an integer number (252134370).

Almost surely, 2^49275641856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49275641856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84717148320).

49275641856 is an abundant number, since it is smaller than the sum of its proper divisors (120158654784).

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

49275641856 is a wasteful number, since it uses less digits than its factorization.

49275641856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 141 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 49275641856 in words is "forty-nine billion, two hundred seventy-five million, six hundred forty-one thousand, eight hundred fifty-six".