49780730328 has 192 divisors, whose sum is σ = 151211059200. Its totient is φ = 13603403520.

The previous prime is 49780730309. The next prime is 49780730383. The reversal of 49780730328 is 82303708794.

It is a super-2 number, since 2×49780730328² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2557513 + ... + 2576903.

It is an arithmetic number, because the mean of its divisors is an integer number (787557600).

Almost surely, 2^49780730328 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 49780730328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75605529600).

49780730328 is an abundant number, since it is smaller than the sum of its proper divisors (101430328872).

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

49780730328 is a wasteful number, since it uses less digits than its factorization.

49780730328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19510 (or 19499 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 49780730328 in words is "forty-nine billion, seven hundred eighty million, seven hundred thirty thousand, three hundred twenty-eight".