49783684991 has 4 divisors (see below), whose sum is σ = 49794519192. Its totient is φ = 49772850792.

The previous prime is 49783684981. The next prime is 49783684999. The reversal of 49783684991 is 19948638794.

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 49783684991 - 2⁶ = 49783684927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49783684999) 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, 5410205 + ... + 5419398.

It is an arithmetic number, because the mean of its divisors is an integer number (12448629798).

Almost surely, 2^49783684991 is an apocalyptic number.

49783684991 is a deficient number, since it is larger than the sum of its proper divisors (10834201).

49783684991 is a wasteful number, since it uses less digits than its factorization.

49783684991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834200.

The product of its digits is 94058496, while the sum is 68.

The spelling of 49783684991 in words is "forty-nine billion, seven hundred eighty-three million, six hundred eighty-four thousand, nine hundred ninety-one".