49447219349291 has 4 divisors (see below), whose sum is σ = 52355879311032. Its totient is φ = 46538559387552.

The previous prime is 49447219349267. The next prime is 49447219349299. The reversal of 49447219349291 is 19294391274494.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49447219349291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49447219349299) 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, 1454329980845 + ... + 1454329980878.

It is an arithmetic number, because the mean of its divisors is an integer number (13088969827758).

Almost surely, 2^{49447219349291} is an apocalyptic number.

49447219349291 is a deficient number, since it is larger than the sum of its proper divisors (2908659961741).

49447219349291 is a wasteful number, since it uses less digits than its factorization.

49447219349291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908659961740.

The product of its digits is 141087744, while the sum is 68.

The spelling of 49447219349291 in words is "forty-nine trillion, four hundred forty-seven billion, two hundred nineteen million, three hundred forty-nine thousand, two hundred ninety-one".