49494949497 has 12 divisors (see below), whose sum is σ = 81705948480. Its totient is φ = 28282828248.

The previous prime is 49494949487. The next prime is 49494949499. The reversal of 49494949497 is 79494949494.

49494949497 is a `hidden beast` number, since 4 + 9 + 4 + 9 + 49 + 494 + 97 = 666.

It is not a de Polignac number, because 49494949497 - 2⁷ = 49494949369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49494949499) 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 11 ways as a sum of consecutive naturals, for example, 392816997 + ... + 392817122.

It is an arithmetic number, because the mean of its divisors is an integer number (6808829040).

Almost surely, 2^49494949497 is an apocalyptic number.

It is an amenable number.

49494949497 is a deficient number, since it is larger than the sum of its proper divisors (32210998983).

49494949497 is a wasteful number, since it uses less digits than its factorization.

49494949497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785634132 (or 785634129 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

It can be divided in two parts, 4949494949 and 7, that multiplied together give a palindrome (34646464643).

The spelling of 49494949497 in words is "forty-nine billion, four hundred ninety-four million, nine hundred forty-nine thousand, four hundred ninety-seven".