49724428649 has 32 divisors (see below), whose sum is σ = 59683322880. Its totient is φ = 40533792768.

The previous prime is 49724428643. The next prime is 49724428673. The reversal of 49724428649 is 94682442794.

It is a happy number.

It is not a de Polignac number, because 49724428649 - 2⁸ = 49724428393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49724428643) 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, 11306519 + ... + 11310915.

It is an arithmetic number, because the mean of its divisors is an integer number (1865103840).

Almost surely, 2^49724428649 is an apocalyptic number.

It is an amenable number.

49724428649 is a deficient number, since it is larger than the sum of its proper divisors (9958894231).

49724428649 is a wasteful number, since it uses less digits than its factorization.

49724428649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417.

The product of its digits is 27869184, while the sum is 59.

The spelling of 49724428649 in words is "forty-nine billion, seven hundred twenty-four million, four hundred twenty-eight thousand, six hundred forty-nine".