49889492136 has 768 divisors, whose sum is σ = 176620953600. Its totient is φ = 12989030400.

The previous prime is 49889492131. The next prime is 49889492171. The reversal of 49889492136 is 63129498894.

49889492136 is a `hidden beast` number, since 4 + 9 + 8 + 8 + 9 + 492 + 136 = 666.

It is a super-2 number, since 2×49889492136² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (49889492131) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 214117876 + ... + 214118108.

It is an arithmetic number, because the mean of its divisors is an integer number (229975200).

Almost surely, 2^49889492136 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 49889492136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88310476800).

49889492136 is an abundant number, since it is smaller than the sum of its proper divisors (126731461464).

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

49889492136 is a wasteful number, since it uses less digits than its factorization.

49889492136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 316 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The spelling of 49889492136 in words is "forty-nine billion, eight hundred eighty-nine million, four hundred ninety-two thousand, one hundred thirty-six".