49508703821 has 4 divisors (see below), whose sum is σ = 49509658044. Its totient is φ = 49507749600.

The previous prime is 49508703799. The next prime is 49508703833. The reversal of 49508703821 is 12830780594.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33578730025 + 15929973796 = 183245^2 + 126214^2 .

It is a cyclic number.

It is not a de Polignac number, because 49508703821 - 2¹⁰ = 49508702797 is a prime.

It is a super-2 number, since 2×49508703821² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49508793821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394520 + ... + 504641.

It is an arithmetic number, because the mean of its divisors is an integer number (12377414511).

Almost surely, 2^49508703821 is an apocalyptic number.

It is an amenable number.

49508703821 is a deficient number, since it is larger than the sum of its proper divisors (954223).

49508703821 is an equidigital number, since it uses as much as digits as its factorization.

49508703821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954222.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 49508703821 in words is "forty-nine billion, five hundred eight million, seven hundred three thousand, eight hundred twenty-one".