49643349161 has 4 divisors (see below), whose sum is σ = 56735256192. Its totient is φ = 42551442132.

The previous prime is 49643349149. The next prime is 49643349179. The reversal of 49643349161 is 16194334694.

It is a happy number.

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 49643349161 - 2⁶ = 49643349097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49643340161) 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, 3545953505 + ... + 3545953518.

It is an arithmetic number, because the mean of its divisors is an integer number (14183814048).

Almost surely, 2^49643349161 is an apocalyptic number.

It is an amenable number.

49643349161 is a deficient number, since it is larger than the sum of its proper divisors (7091907031).

49643349161 is an equidigital number, since it uses as much as digits as its factorization.

49643349161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091907030.

The product of its digits is 1679616, while the sum is 50.

The spelling of 49643349161 in words is "forty-nine billion, six hundred forty-three million, three hundred forty-nine thousand, one hundred sixty-one".