49919571084581 has 16 divisors (see below), whose sum is σ = 55273176811008. Its totient is φ = 44701941068400.

The previous prime is 49919571084571. The next prime is 49919571084667. The reversal of 49919571084581 is 18548017591994.

49919571084581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49919571084581 - 2³⁸ = 49644693177637 is a prime.

It is a super-2 number, since 2×49919571084581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49919571084571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13785326 + ... + 17025696.

It is an arithmetic number, because the mean of its divisors is an integer number (3454573550688).

Almost surely, 2^{49919571084581} is an apocalyptic number.

It is an amenable number.

49919571084581 is a deficient number, since it is larger than the sum of its proper divisors (5353605726427).

49919571084581 is a wasteful number, since it uses less digits than its factorization.

49919571084581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261352.

The product of its (nonzero) digits is 130636800, while the sum is 71.

The spelling of 49919571084581 in words is "forty-nine trillion, nine hundred nineteen billion, five hundred seventy-one million, eighty-four thousand, five hundred eighty-one".