49638744519 has 32 divisors (see below), whose sum is σ = 85745748480. Its totient is φ = 24805014912.

The previous prime is 49638744517. The next prime is 49638744523. The reversal of 49638744519 is 91544783694.

It is not a de Polignac number, because 49638744519 - 2¹ = 49638744517 is a prime.

It is a super-2 number, since 2×49638744519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49638744517) 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 31 ways as a sum of consecutive naturals, for example, 4779732 + ... + 4790105.

It is an arithmetic number, because the mean of its divisors is an integer number (2679554640).

Almost surely, 2^49638744519 is an apocalyptic number.

49638744519 is a deficient number, since it is larger than the sum of its proper divisors (36107003961).

49638744519 is a wasteful number, since it uses less digits than its factorization.

49638744519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9569879.

The product of its digits is 26127360, while the sum is 60.

The spelling of 49638744519 in words is "forty-nine billion, six hundred thirty-eight million, seven hundred forty-four thousand, five hundred nineteen".