49779984375 has 224 divisors, whose sum is σ = 106648634880. Its totient is φ = 22680000000.

The previous prime is 49779984323. The next prime is 49779984377. The reversal of 49779984375 is 57348997794.

49779984375 is a `hidden beast` number, since 4 + 97 + 7 + 99 + 84 + 375 = 666.

It is not a de Polignac number, because 49779984375 - 2¹¹ = 49779982327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49779984377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 78890310 + ... + 78890940.

Almost surely, 2^49779984375 is an apocalyptic number.

49779984375 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49779984375 is an abundant number, since it is smaller than the sum of its proper divisors (56868650505).

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

49779984375 is an equidigital number, since it uses as much as digits as its factorization.

49779984375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 667 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 72.

The spelling of 49779984375 in words is "forty-nine billion, seven hundred seventy-nine million, nine hundred eighty-four thousand, three hundred seventy-five".