49989654792 has 192 divisors, whose sum is σ = 175048473600. Its totient is φ = 12984287040.

The previous prime is 49989654763. The next prime is 49989654851. The reversal of 49989654792 is 29745698994.

49989654792 is a `hidden beast` number, since 4 + 9 + 98 + 9 + 65 + 479 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 49989654792.

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 47 ways as a sum of consecutive naturals, for example, 17292 + ... + 316667.

It is an arithmetic number, because the mean of its divisors is an integer number (911710800).

Almost surely, 2^49989654792 is an apocalyptic number.

49989654792 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49989654792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87524236800).

49989654792 is an abundant number, since it is smaller than the sum of its proper divisors (125058818808).

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

49989654792 is a wasteful number, since it uses less digits than its factorization.

49989654792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333998 (or 333982 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 49989654792 in words is "forty-nine billion, nine hundred eighty-nine million, six hundred fifty-four thousand, seven hundred ninety-two".