49551578320 has 40 divisors (see below), whose sum is σ = 117381154536. Its totient is φ = 19446655488.

The previous prime is 49551578317. The next prime is 49551578411. The reversal of 49551578320 is 2387515594.

It can be written as a sum of positive squares in 4 ways, for example, as 26015109264 + 23536469056 = 161292^2 + 153416^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5839107 + ... + 5847586.

Almost surely, 2^49551578320 is an apocalyptic number.

49551578320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49551578320 is an abundant number, since it is smaller than the sum of its proper divisors (67829576216).

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

49551578320 is a wasteful number, since it uses less digits than its factorization.

49551578320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11686759 (or 11686753 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 49551578320 in words is "forty-nine billion, five hundred fifty-one million, five hundred seventy-eight thousand, three hundred twenty".