49185729792 has 360 divisors, whose sum is σ = 152786874240. Its totient is φ = 15718993920.

The previous prime is 49185729787. The next prime is 49185729823. The reversal of 49185729792 is 29792758194.

49185729792 is a `hidden beast` number, since 49 + 18 + 572 + 9 + 7 + 9 + 2 = 666.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 158153317 + ... + 158153627.

It is an arithmetic number, because the mean of its divisors is an integer number (424407984).

Almost surely, 2^49185729792 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 49185729792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76393437120).

49185729792 is an abundant number, since it is smaller than the sum of its proper divisors (103601144448).

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

49185729792 is a wasteful number, since it uses less digits than its factorization.

49185729792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 608 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 49185729792 in words is "forty-nine billion, one hundred eighty-five million, seven hundred twenty-nine thousand, seven hundred ninety-two".