49695782091 has 4 divisors (see below), whose sum is σ = 66261042792. Its totient is φ = 33130521392.

The previous prime is 49695782057. The next prime is 49695782099. The reversal of 49695782091 is 19028759694.

49695782091 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.

It is a cyclic number.

It is not a de Polignac number, because 49695782091 - 2⁹ = 49695781579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49695782099) 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, 8282630346 + ... + 8282630351.

It is an arithmetic number, because the mean of its divisors is an integer number (16565260698).

Almost surely, 2^49695782091 is an apocalyptic number.

49695782091 is a deficient number, since it is larger than the sum of its proper divisors (16565260701).

49695782091 is a wasteful number, since it uses less digits than its factorization.

49695782091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565260700.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 49695782091 in words is "forty-nine billion, six hundred ninety-five million, seven hundred eighty-two thousand, ninety-one".