49507697739 has 16 divisors (see below), whose sum is σ = 69443884800. Its totient is φ = 31326901536.

The previous prime is 49507697689. The next prime is 49507697749. The reversal of 49507697739 is 93779670594.

It is not a de Polignac number, because 49507697739 - 2⁷ = 49507697611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49507697739.

It is not an unprimeable number, because it can be changed into a prime (49507697749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4817359 + ... + 4827624.

It is an arithmetic number, because the mean of its divisors is an integer number (4340242800).

Almost surely, 2^49507697739 is an apocalyptic number.

49507697739 is a deficient number, since it is larger than the sum of its proper divisors (19936187061).

49507697739 is a wasteful number, since it uses less digits than its factorization.

49507697739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645074.

The product of its (nonzero) digits is 90016920, while the sum is 66.

The spelling of 49507697739 in words is "forty-nine billion, five hundred seven million, six hundred ninety-seven thousand, seven hundred thirty-nine".