49721531299 has 16 divisors (see below), whose sum is σ = 54867456000. Its totient is φ = 44680208320.

The previous prime is 49721531297. The next prime is 49721531317. The reversal of 49721531299 is 99213512794.

It is not a de Polignac number, because 49721531299 - 2¹ = 49721531297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49721531297) 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 15 ways as a sum of consecutive naturals, for example, 4928142 + ... + 4938220.

It is an arithmetic number, because the mean of its divisors is an integer number (3429216000).

Almost surely, 2^49721531299 is an apocalyptic number.

49721531299 is a deficient number, since it is larger than the sum of its proper divisors (5145924701).

49721531299 is a wasteful number, since it uses less digits than its factorization.

49721531299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15218.

The product of its digits is 1224720, while the sum is 52.

The spelling of 49721531299 in words is "forty-nine billion, seven hundred twenty-one million, five hundred thirty-one thousand, two hundred ninety-nine".