49464894191 has 4 divisors (see below), whose sum is σ = 49522613712. Its totient is φ = 49407174672.

The previous prime is 49464894163. The next prime is 49464894209. The reversal of 49464894191 is 19149846494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49464894191 - 2¹⁴ = 49464877807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49464894191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49464894131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28858475 + ... + 28860188.

It is an arithmetic number, because the mean of its divisors is an integer number (12380653428).

Almost surely, 2^49464894191 is an apocalyptic number.

49464894191 is a deficient number, since it is larger than the sum of its proper divisors (57719521).

49464894191 is an equidigital number, since it uses as much as digits as its factorization.

49464894191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57719520.

The product of its digits is 8957952, while the sum is 59.

The spelling of 49464894191 in words is "forty-nine billion, four hundred sixty-four million, eight hundred ninety-four thousand, one hundred ninety-one".