49958456181 has 4 divisors (see below), whose sum is σ = 66611274912. Its totient is φ = 33305637452.

The previous prime is 49958456179. The next prime is 49958456203. The reversal of 49958456181 is 18165485994.

49958456181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49958456181 - 2¹ = 49958456179 is a prime.

It is a super-2 number, since 2×49958456181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49958456161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8326409361 + ... + 8326409366.

It is an arithmetic number, because the mean of its divisors is an integer number (16652818728).

Almost surely, 2^49958456181 is an apocalyptic number.

It is an amenable number.

49958456181 is a deficient number, since it is larger than the sum of its proper divisors (16652818731).

49958456181 is a wasteful number, since it uses less digits than its factorization.

49958456181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652818730.

The product of its digits is 12441600, while the sum is 60.

The spelling of 49958456181 in words is "forty-nine billion, nine hundred fifty-eight million, four hundred fifty-six thousand, one hundred eighty-one".