49899382881 has 8 divisors (see below), whose sum is σ = 66572428704. Its totient is φ = 33246296160.

The previous prime is 49899382849. The next prime is 49899382963. The reversal of 49899382881 is 18828399894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49899382881 - 2⁵ = 49899382849 is a prime.

It is a super-2 number, since 2×49899382881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49899382801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4983940 + ... + 4993941.

It is an arithmetic number, because the mean of its divisors is an integer number (8321553588).

Almost surely, 2^49899382881 is an apocalyptic number.

It is an amenable number.

49899382881 is a deficient number, since it is larger than the sum of its proper divisors (16673045823).

49899382881 is a wasteful number, since it uses less digits than its factorization.

49899382881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979551.

The product of its digits is 71663616, while the sum is 69.

The spelling of 49899382881 in words is "forty-nine billion, eight hundred ninety-nine million, three hundred eighty-two thousand, eight hundred eighty-one".