49834581581 has 8 divisors (see below), whose sum is σ = 50409597504. Its totient is φ = 49260816000.

The previous prime is 49834581553. The next prime is 49834581593. The reversal of 49834581581 is 18518543894.

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

It is a cyclic number.

It is not a de Polignac number, because 49834581581 - 2²⁶ = 49767472717 is a prime.

It is a super-2 number, since 2×49834581581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49834587581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232295 + ... + 391956.

It is an arithmetic number, because the mean of its divisors is an integer number (6301199688).

Almost surely, 2^49834581581 is an apocalyptic number.

It is an amenable number.

49834581581 is a deficient number, since it is larger than the sum of its proper divisors (575015923).

49834581581 is an equidigital number, since it uses as much as digits as its factorization.

49834581581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625171.

The product of its digits is 5529600, while the sum is 56.

The spelling of 49834581581 in words is "forty-nine billion, eight hundred thirty-four million, five hundred eighty-one thousand, five hundred eighty-one".