49889390481 has 20 divisors (see below), whose sum is σ = 85172716992. Its totient is φ = 28508222808.

The previous prime is 49889390437. The next prime is 49889390483. The reversal of 49889390481 is 18409398894.

49889390481 is a `hidden beast` number, since 4 + 98 + 89 + 390 + 4 + 81 = 666.

It is not a de Polignac number, because 49889390481 - 2⁶ = 49889390417 is a prime.

It is a super-2 number, since 2×49889390481² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (49889390483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43993605 + ... + 43994738.

Almost surely, 2^49889390481 is an apocalyptic number.

It is an amenable number.

49889390481 is a deficient number, since it is larger than the sum of its proper divisors (35283326511).

49889390481 is an equidigital number, since it uses as much as digits as its factorization.

49889390481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87988362 (or 87988353 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 49889390481 in words is "forty-nine billion, eight hundred eighty-nine million, three hundred ninety thousand, four hundred eighty-one".